Home / 3,619.90-4,995.03-2,127.70

Finding the Fourth Proportional to 3,619.90, 4,995.03 and 2,127.70

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Solution

The fourth proportional to 3,619.90, 4,995.03 and 2,127.70 is: 2,935.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.90 : 4,995.03 = 2,127.70 : x
  2. Step 2: Convert to fraction form
    3,619.90/4,995.03 = 2,127.70/x
  3. Step 3: Cross multiply
    3,619.90x = 4,995.03 × 2,127.70
  4. Step 4: Simplify right side
    3,619.90x = 10,627,925.33
  5. Step 5: Solve for x
    x = 10,627,925.33/3,619.90
  6. Step 6: Final answer
    x = 2,935.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.