Home / 3,128,130.45-4,692,195.68-2,456,284.05

Finding the Fourth Proportional to 3,128,130.45, 4,692,195.68 and 2,456,284.05

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Solution

The fourth proportional to 3,128,130.45, 4,692,195.68 and 2,456,284.05 is: 3,684,426.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,130.45 : 4,692,195.68 = 2,456,284.05 : x
  2. Step 2: Convert to fraction form
    3,128,130.45/4,692,195.68 = 2,456,284.05/x
  3. Step 3: Cross multiply
    3,128,130.45x = 4,692,195.68 × 2,456,284.05
  4. Step 4: Simplify right side
    3,128,130.45x = 11,525,365,395,981.48
  5. Step 5: Solve for x
    x = 11,525,365,395,981.48/3,128,130.45
  6. Step 6: Final answer
    x = 3,684,426.08

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.