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Finding the Fourth Proportional to 5,775.40, 8,663.10 and 3,807.10

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Solution

The fourth proportional to 5,775.40, 8,663.10 and 3,807.10 is: 5,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.40 : 8,663.10 = 3,807.10 : x
  2. Step 2: Convert to fraction form
    5,775.40/8,663.10 = 3,807.10/x
  3. Step 3: Cross multiply
    5,775.40x = 8,663.10 × 3,807.10
  4. Step 4: Simplify right side
    5,775.40x = 32,981,288.01
  5. Step 5: Solve for x
    x = 32,981,288.01/5,775.40
  6. Step 6: Final answer
    x = 5,710.65

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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.