Home / 1,539.04-2,306.94-991.42

Finding the Fourth Proportional to 1,539.04, 2,306.94 and 991.42

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Solution

The fourth proportional to 1,539.04, 2,306.94 and 991.42 is: 1,486.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.04 : 2,306.94 = 991.42 : x
  2. Step 2: Convert to fraction form
    1,539.04/2,306.94 = 991.42/x
  3. Step 3: Cross multiply
    1,539.04x = 2,306.94 × 991.42
  4. Step 4: Simplify right side
    1,539.04x = 2,287,146.45
  5. Step 5: Solve for x
    x = 2,287,146.45/1,539.04
  6. Step 6: Final answer
    x = 1,486.09

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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.