Home / 6,403.52-8,833.56-3,609.20

Finding the Fourth Proportional to 6,403.52, 8,833.56 and 3,609.20

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Solution

The fourth proportional to 6,403.52, 8,833.56 and 3,609.20 is: 4,978.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403.52 : 8,833.56 = 3,609.20 : x
  2. Step 2: Convert to fraction form
    6,403.52/8,833.56 = 3,609.20/x
  3. Step 3: Cross multiply
    6,403.52x = 8,833.56 × 3,609.20
  4. Step 4: Simplify right side
    6,403.52x = 31,882,084.75
  5. Step 5: Solve for x
    x = 31,882,084.75/6,403.52
  6. Step 6: Final answer
    x = 4,978.84

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1.5x scale

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.