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Finding the Fourth Proportional to 6,140.76, 9,209.28 and 3,217.44

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Solution

The fourth proportional to 6,140.76, 9,209.28 and 3,217.44 is: 4,825.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.76 : 9,209.28 = 3,217.44 : x
  2. Step 2: Convert to fraction form
    6,140.76/9,209.28 = 3,217.44/x
  3. Step 3: Cross multiply
    6,140.76x = 9,209.28 × 3,217.44
  4. Step 4: Simplify right side
    6,140.76x = 29,630,305.84
  5. Step 5: Solve for x
    x = 29,630,305.84/6,140.76
  6. Step 6: Final answer
    x = 4,825.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.