Home / 1,521.20-2,281.80-966.35

Finding the Fourth Proportional to 1,521.20, 2,281.80 and 966.35

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Solution

The fourth proportional to 1,521.20, 2,281.80 and 966.35 is: 1,449.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.20 : 2,281.80 = 966.35 : x
  2. Step 2: Convert to fraction form
    1,521.20/2,281.80 = 966.35/x
  3. Step 3: Cross multiply
    1,521.20x = 2,281.80 × 966.35
  4. Step 4: Simplify right side
    1,521.20x = 2,205,017.43
  5. Step 5: Solve for x
    x = 2,205,017.43/1,521.20
  6. Step 6: Final answer
    x = 1,449.53

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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.