Home / 3,701.43-5,108.10-2,129.52

Finding the Fourth Proportional to 3,701.43, 5,108.10 and 2,129.52

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Solution

The fourth proportional to 3,701.43, 5,108.10 and 2,129.52 is: 2,938.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,701.43 : 5,108.10 = 2,129.52 : x
  2. Step 2: Convert to fraction form
    3,701.43/5,108.10 = 2,129.52/x
  3. Step 3: Cross multiply
    3,701.43x = 5,108.10 × 2,129.52
  4. Step 4: Simplify right side
    3,701.43x = 10,877,812.28
  5. Step 5: Solve for x
    x = 10,877,812.28/3,701.43
  6. Step 6: Final answer
    x = 2,938.81

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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.