Home / 3,687,139.50-5,088,252.51-1,991,395.50

Finding the Fourth Proportional to 3,687,139.50, 5,088,252.51 and 1,991,395.50

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Solution

The fourth proportional to 3,687,139.50, 5,088,252.51 and 1,991,395.50 is: 2,748,125.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687,139.50 : 5,088,252.51 = 1,991,395.50 : x
  2. Step 2: Convert to fraction form
    3,687,139.50/5,088,252.51 = 1,991,395.50/x
  3. Step 3: Cross multiply
    3,687,139.50x = 5,088,252.51 × 1,991,395.50
  4. Step 4: Simplify right side
    3,687,139.50x = 10,132,723,151,277.71
  5. Step 5: Solve for x
    x = 10,132,723,151,277.71/3,687,139.50
  6. Step 6: Final answer
    x = 2,748,125.79

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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.