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Finding the Fourth Proportional to 3,775.40, 5,663.10 and 3,710.60

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Solution

The fourth proportional to 3,775.40, 5,663.10 and 3,710.60 is: 5,565.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,775.40 : 5,663.10 = 3,710.60 : x
  2. Step 2: Convert to fraction form
    3,775.40/5,663.10 = 3,710.60/x
  3. Step 3: Cross multiply
    3,775.40x = 5,663.10 × 3,710.60
  4. Step 4: Simplify right side
    3,775.40x = 21,013,498.86
  5. Step 5: Solve for x
    x = 21,013,498.86/3,775.40
  6. Step 6: Final answer
    x = 5,565.90

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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.