Home / 5,665.10-8,497.65-2,154.30

Finding the Fourth Proportional to 5,665.10, 8,497.65 and 2,154.30

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Solution

The fourth proportional to 5,665.10, 8,497.65 and 2,154.30 is: 3,231.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,665.10 : 8,497.65 = 2,154.30 : x
  2. Step 2: Convert to fraction form
    5,665.10/8,497.65 = 2,154.30/x
  3. Step 3: Cross multiply
    5,665.10x = 8,497.65 × 2,154.30
  4. Step 4: Simplify right side
    5,665.10x = 18,306,447.60
  5. Step 5: Solve for x
    x = 18,306,447.60/5,665.10
  6. Step 6: Final answer
    x = 3,231.44

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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.