Home / 3,942,489.77-5,913,707.95-2,121,711.56

Finding the Fourth Proportional to 3,942,489.77, 5,913,707.95 and 2,121,711.56

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Solution

The fourth proportional to 3,942,489.77, 5,913,707.95 and 2,121,711.56 is: 3,182,552.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942,489.77 : 5,913,707.95 = 2,121,711.56 : x
  2. Step 2: Convert to fraction form
    3,942,489.77/5,913,707.95 = 2,121,711.56/x
  3. Step 3: Cross multiply
    3,942,489.77x = 5,913,707.95 × 2,121,711.56
  4. Step 4: Simplify right side
    3,942,489.77x = 12,547,182,519,978.90
  5. Step 5: Solve for x
    x = 12,547,182,519,978.90/3,942,489.77
  6. Step 6: Final answer
    x = 3,182,552.97

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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.