Home / 1,520.07-2,279.90-532.69

Finding the Fourth Proportional to 1,520.07, 2,279.90 and 532.69

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Solution

The fourth proportional to 1,520.07, 2,279.90 and 532.69 is: 798.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.07 : 2,279.90 = 532.69 : x
  2. Step 2: Convert to fraction form
    1,520.07/2,279.90 = 532.69/x
  3. Step 3: Cross multiply
    1,520.07x = 2,279.90 × 532.69
  4. Step 4: Simplify right side
    1,520.07x = 1,214,485.39
  5. Step 5: Solve for x
    x = 1,214,485.39/1,520.07
  6. Step 6: Final answer
    x = 798.97

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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.