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Finding the Fourth Proportional to 3,337.60, 4,995.60 and 2,603.20

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Solution

The fourth proportional to 3,337.60, 4,995.60 and 2,603.20 is: 3,896.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,337.60 : 4,995.60 = 2,603.20 : x
  2. Step 2: Convert to fraction form
    3,337.60/4,995.60 = 2,603.20/x
  3. Step 3: Cross multiply
    3,337.60x = 4,995.60 × 2,603.20
  4. Step 4: Simplify right side
    3,337.60x = 13,004,545.92
  5. Step 5: Solve for x
    x = 13,004,545.92/3,337.60
  6. Step 6: Final answer
    x = 3,896.38

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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.