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Finding the Fourth Proportional to 6,752.40, 9,319.88 and 4,390.44

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Solution

The fourth proportional to 6,752.40, 9,319.88 and 4,390.44 is: 6,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,752.40 : 9,319.88 = 4,390.44 : x
  2. Step 2: Convert to fraction form
    6,752.40/9,319.88 = 4,390.44/x
  3. Step 3: Cross multiply
    6,752.40x = 9,319.88 × 4,390.44
  4. Step 4: Simplify right side
    6,752.40x = 40,918,373.95
  5. Step 5: Solve for x
    x = 40,918,373.95/6,752.40
  6. Step 6: Final answer
    x = 6,059.83

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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.