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Finding the Fourth Proportional to 3,663.90, 5,495.85 and 1,472.63

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Solution

The fourth proportional to 3,663.90, 5,495.85 and 1,472.63 is: 2,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,663.90 : 5,495.85 = 1,472.63 : x
  2. Step 2: Convert to fraction form
    3,663.90/5,495.85 = 1,472.63/x
  3. Step 3: Cross multiply
    3,663.90x = 5,495.85 × 1,472.63
  4. Step 4: Simplify right side
    3,663.90x = 8,093,353.59
  5. Step 5: Solve for x
    x = 8,093,353.59/3,663.90
  6. Step 6: Final answer
    x = 2,208.95

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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.