Home / 1,520.15-2,279.31-594.61

Finding the Fourth Proportional to 1,520.15, 2,279.31 and 594.61

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Solution

The fourth proportional to 1,520.15, 2,279.31 and 594.61 is: 891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.15 : 2,279.31 = 594.61 : x
  2. Step 2: Convert to fraction form
    1,520.15/2,279.31 = 594.61/x
  3. Step 3: Cross multiply
    1,520.15x = 2,279.31 × 594.61
  4. Step 4: Simplify right side
    1,520.15x = 1,355,289.12
  5. Step 5: Solve for x
    x = 1,355,289.12/1,520.15
  6. Step 6: Final answer
    x = 891.55

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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.