Home / 3,878,565.89-5,352,311.13-2,112,424.07

Finding the Fourth Proportional to 3,878,565.89, 5,352,311.13 and 2,112,424.07

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Solution

The fourth proportional to 3,878,565.89, 5,352,311.13 and 2,112,424.07 is: 2,915,085.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,565.89 : 5,352,311.13 = 2,112,424.07 : x
  2. Step 2: Convert to fraction form
    3,878,565.89/5,352,311.13 = 2,112,424.07/x
  3. Step 3: Cross multiply
    3,878,565.89x = 5,352,311.13 × 2,112,424.07
  4. Step 4: Simplify right side
    3,878,565.89x = 11,306,350,861,140.90
  5. Step 5: Solve for x
    x = 11,306,350,861,140.90/3,878,565.89
  6. Step 6: Final answer
    x = 2,915,085.42

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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.