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Finding the Fourth Proportional to 6,545, 9,031.86 and 3,560.76

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Solution

The fourth proportional to 6,545, 9,031.86 and 3,560.76 is: 4,913.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,545 : 9,031.86 = 3,560.76 : x
  2. Step 2: Convert to fraction form
    6,545/9,031.86 = 3,560.76/x
  3. Step 3: Cross multiply
    6,545x = 9,031.86 × 3,560.76
  4. Step 4: Simplify right side
    6,545x = 32,160,285.81
  5. Step 5: Solve for x
    x = 32,160,285.81/6,545
  6. Step 6: Final answer
    x = 4,913.72

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Half scale
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Double scale
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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.