Home / 1,265.20-1,895.46-1,061.08

Finding the Fourth Proportional to 1,265.20, 1,895.46 and 1,061.08

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Solution

The fourth proportional to 1,265.20, 1,895.46 and 1,061.08 is: 1,589.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265.20 : 1,895.46 = 1,061.08 : x
  2. Step 2: Convert to fraction form
    1,265.20/1,895.46 = 1,061.08/x
  3. Step 3: Cross multiply
    1,265.20x = 1,895.46 × 1,061.08
  4. Step 4: Simplify right side
    1,265.20x = 2,011,234.70
  5. Step 5: Solve for x
    x = 2,011,234.70/1,265.20
  6. Step 6: Final answer
    x = 1,589.66

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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.