Home / 6,459.10-9,688.65-3,996.70

Finding the Fourth Proportional to 6,459.10, 9,688.65 and 3,996.70

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Solution

The fourth proportional to 6,459.10, 9,688.65 and 3,996.70 is: 5,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,459.10 : 9,688.65 = 3,996.70 : x
  2. Step 2: Convert to fraction form
    6,459.10/9,688.65 = 3,996.70/x
  3. Step 3: Cross multiply
    6,459.10x = 9,688.65 × 3,996.70
  4. Step 4: Simplify right side
    6,459.10x = 38,722,627.46
  5. Step 5: Solve for x
    x = 38,722,627.46/6,459.10
  6. Step 6: Final answer
    x = 5,995.05

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Half scale
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Double 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.