Home / 1,508.14-2,261.62-520.77

Finding the Fourth Proportional to 1,508.14, 2,261.62 and 520.77

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Solution

The fourth proportional to 1,508.14, 2,261.62 and 520.77 is: 780.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.14 : 2,261.62 = 520.77 : x
  2. Step 2: Convert to fraction form
    1,508.14/2,261.62 = 520.77/x
  3. Step 3: Cross multiply
    1,508.14x = 2,261.62 × 520.77
  4. Step 4: Simplify right side
    1,508.14x = 1,177,781.24
  5. Step 5: Solve for x
    x = 1,177,781.24/1,508.14
  6. Step 6: Final answer
    x = 780.95

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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.