Home / 6,423.10-9,634.65-3,658.30

Finding the Fourth Proportional to 6,423.10, 9,634.65 and 3,658.30

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Solution

The fourth proportional to 6,423.10, 9,634.65 and 3,658.30 is: 5,487.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,423.10 : 9,634.65 = 3,658.30 : x
  2. Step 2: Convert to fraction form
    6,423.10/9,634.65 = 3,658.30/x
  3. Step 3: Cross multiply
    6,423.10x = 9,634.65 × 3,658.30
  4. Step 4: Simplify right side
    6,423.10x = 35,246,440.10
  5. Step 5: Solve for x
    x = 35,246,440.10/6,423.10
  6. Step 6: Final answer
    x = 5,487.45

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Half scale
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Similar ratio
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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.