Home / 5,642.01-7,785.86-3,124.04

Finding the Fourth Proportional to 5,642.01, 7,785.86 and 3,124.04

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Solution

The fourth proportional to 5,642.01, 7,785.86 and 3,124.04 is: 4,311.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642.01 : 7,785.86 = 3,124.04 : x
  2. Step 2: Convert to fraction form
    5,642.01/7,785.86 = 3,124.04/x
  3. Step 3: Cross multiply
    5,642.01x = 7,785.86 × 3,124.04
  4. Step 4: Simplify right side
    5,642.01x = 24,323,283.52
  5. Step 5: Solve for x
    x = 24,323,283.52/5,642.01
  6. Step 6: Final answer
    x = 4,311.10

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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.