Home / 1,515.86-2,269.44-934.82

Finding the Fourth Proportional to 1,515.86, 2,269.44 and 934.82

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Solution

The fourth proportional to 1,515.86, 2,269.44 and 934.82 is: 1,399.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.86 : 2,269.44 = 934.82 : x
  2. Step 2: Convert to fraction form
    1,515.86/2,269.44 = 934.82/x
  3. Step 3: Cross multiply
    1,515.86x = 2,269.44 × 934.82
  4. Step 4: Simplify right side
    1,515.86x = 2,121,517.90
  5. Step 5: Solve for x
    x = 2,121,517.90/1,515.86
  6. Step 6: Final answer
    x = 1,399.55

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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.