Home / 2,649.60-3,983.40-2,166.16

Finding the Fourth Proportional to 2,649.60, 3,983.40 and 2,166.16

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Solution

The fourth proportional to 2,649.60, 3,983.40 and 2,166.16 is: 3,256.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.60 : 3,983.40 = 2,166.16 : x
  2. Step 2: Convert to fraction form
    2,649.60/3,983.40 = 2,166.16/x
  3. Step 3: Cross multiply
    2,649.60x = 3,983.40 × 2,166.16
  4. Step 4: Simplify right side
    2,649.60x = 8,628,681.74
  5. Step 5: Solve for x
    x = 8,628,681.74/2,649.60
  6. Step 6: Final answer
    x = 3,256.60

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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.