Home / 3,663.48-5,490.27-1,687.98

Finding the Fourth Proportional to 3,663.48, 5,490.27 and 1,687.98

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Solution

The fourth proportional to 3,663.48, 5,490.27 and 1,687.98 is: 2,529.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,663.48 : 5,490.27 = 1,687.98 : x
  2. Step 2: Convert to fraction form
    3,663.48/5,490.27 = 1,687.98/x
  3. Step 3: Cross multiply
    3,663.48x = 5,490.27 × 1,687.98
  4. Step 4: Simplify right side
    3,663.48x = 9,267,465.95
  5. Step 5: Solve for x
    x = 9,267,465.95/3,663.48
  6. Step 6: Final answer
    x = 2,529.69

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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.