Home / 3,732.86-5,151.12-2,160.65

Finding the Fourth Proportional to 3,732.86, 5,151.12 and 2,160.65

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Solution

The fourth proportional to 3,732.86, 5,151.12 and 2,160.65 is: 2,981.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,732.86 : 5,151.12 = 2,160.65 : x
  2. Step 2: Convert to fraction form
    3,732.86/5,151.12 = 2,160.65/x
  3. Step 3: Cross multiply
    3,732.86x = 5,151.12 × 2,160.65
  4. Step 4: Simplify right side
    3,732.86x = 11,129,767.43
  5. Step 5: Solve for x
    x = 11,129,767.43/3,732.86
  6. Step 6: Final answer
    x = 2,981.57

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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.