Home / 1,132.04-1,698.12-515.80

Finding the Fourth Proportional to 1,132.04, 1,698.12 and 515.80

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Solution

The fourth proportional to 1,132.04, 1,698.12 and 515.80 is: 773.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.04 : 1,698.12 = 515.80 : x
  2. Step 2: Convert to fraction form
    1,132.04/1,698.12 = 515.80/x
  3. Step 3: Cross multiply
    1,132.04x = 1,698.12 × 515.80
  4. Step 4: Simplify right side
    1,132.04x = 875,890.30
  5. Step 5: Solve for x
    x = 875,890.30/1,132.04
  6. Step 6: Final answer
    x = 773.73

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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.