Home / 6,402.25-8,835.56-3,607.75

Finding the Fourth Proportional to 6,402.25, 8,835.56 and 3,607.75

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Solution

The fourth proportional to 6,402.25, 8,835.56 and 3,607.75 is: 4,978.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,402.25 : 8,835.56 = 3,607.75 : x
  2. Step 2: Convert to fraction form
    6,402.25/8,835.56 = 3,607.75/x
  3. Step 3: Cross multiply
    6,402.25x = 8,835.56 × 3,607.75
  4. Step 4: Simplify right side
    6,402.25x = 31,876,491.59
  5. Step 5: Solve for x
    x = 31,876,491.59/6,402.25
  6. Step 6: Final answer
    x = 4,978.95

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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.