Home / 3,731.50-5,149.47-2,160.52

Finding the Fourth Proportional to 3,731.50, 5,149.47 and 2,160.52

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Solution

The fourth proportional to 3,731.50, 5,149.47 and 2,160.52 is: 2,981.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.50 : 5,149.47 = 2,160.52 : x
  2. Step 2: Convert to fraction form
    3,731.50/5,149.47 = 2,160.52/x
  3. Step 3: Cross multiply
    3,731.50x = 5,149.47 × 2,160.52
  4. Step 4: Simplify right side
    3,731.50x = 11,125,532.92
  5. Step 5: Solve for x
    x = 11,125,532.92/3,731.50
  6. Step 6: Final answer
    x = 2,981.52

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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.