Home / 2,515.72-3,773.58-1,053.85

Finding the Fourth Proportional to 2,515.72, 3,773.58 and 1,053.85

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Solution

The fourth proportional to 2,515.72, 3,773.58 and 1,053.85 is: 1,580.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.72 : 3,773.58 = 1,053.85 : x
  2. Step 2: Convert to fraction form
    2,515.72/3,773.58 = 1,053.85/x
  3. Step 3: Cross multiply
    2,515.72x = 3,773.58 × 1,053.85
  4. Step 4: Simplify right side
    2,515.72x = 3,976,787.28
  5. Step 5: Solve for x
    x = 3,976,787.28/2,515.72
  6. Step 6: Final answer
    x = 1,580.78

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1.5x scale

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.