Home / 3,899,122.92-5,380,375.40-2,156,515.43

Finding the Fourth Proportional to 3,899,122.92, 5,380,375.40 and 2,156,515.43

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Solution

The fourth proportional to 3,899,122.92, 5,380,375.40 and 2,156,515.43 is: 2,975,762.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899,122.92 : 5,380,375.40 = 2,156,515.43 : x
  2. Step 2: Convert to fraction form
    3,899,122.92/5,380,375.40 = 2,156,515.43/x
  3. Step 3: Cross multiply
    3,899,122.92x = 5,380,375.40 × 2,156,515.43
  4. Step 4: Simplify right side
    3,899,122.92x = 11,602,862,582,089.91
  5. Step 5: Solve for x
    x = 11,602,862,582,089.91/3,899,122.92
  6. Step 6: Final answer
    x = 2,975,762.20

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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.