Home / 1,539.23-2,304.18-991.80

Finding the Fourth Proportional to 1,539.23, 2,304.18 and 991.80

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Solution

The fourth proportional to 1,539.23, 2,304.18 and 991.80 is: 1,484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.23 : 2,304.18 = 991.80 : x
  2. Step 2: Convert to fraction form
    1,539.23/2,304.18 = 991.80/x
  3. Step 3: Cross multiply
    1,539.23x = 2,304.18 × 991.80
  4. Step 4: Simplify right side
    1,539.23x = 2,285,285.72
  5. Step 5: Solve for x
    x = 2,285,285.72/1,539.23
  6. Step 6: Final answer
    x = 1,484.70

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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.