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Finding the Fourth Proportional to 3,670.90, 5,501.85 and 2,500.90

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Solution

The fourth proportional to 3,670.90, 5,501.85 and 2,500.90 is: 3,748.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.90 : 5,501.85 = 2,500.90 : x
  2. Step 2: Convert to fraction form
    3,670.90/5,501.85 = 2,500.90/x
  3. Step 3: Cross multiply
    3,670.90x = 5,501.85 × 2,500.90
  4. Step 4: Simplify right side
    3,670.90x = 13,759,576.67
  5. Step 5: Solve for x
    x = 13,759,576.67/3,670.90
  6. Step 6: Final answer
    x = 3,748.28

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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.