Home / 3,687,147-5,088,262.86-1,991,403

Finding the Fourth Proportional to 3,687,147, 5,088,262.86 and 1,991,403

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Solution

The fourth proportional to 3,687,147, 5,088,262.86 and 1,991,403 is: 2,748,136.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687,147 : 5,088,262.86 = 1,991,403 : x
  2. Step 2: Convert to fraction form
    3,687,147/5,088,262.86 = 1,991,403/x
  3. Step 3: Cross multiply
    3,687,147x = 5,088,262.86 × 1,991,403
  4. Step 4: Simplify right side
    3,687,147x = 10,132,781,924,192.58
  5. Step 5: Solve for x
    x = 10,132,781,924,192.58/3,687,147
  6. Step 6: Final answer
    x = 2,748,136.14

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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.