Home / 1,146.20-1,718.28-560.87

Finding the Fourth Proportional to 1,146.20, 1,718.28 and 560.87

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Solution

The fourth proportional to 1,146.20, 1,718.28 and 560.87 is: 840.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146.20 : 1,718.28 = 560.87 : x
  2. Step 2: Convert to fraction form
    1,146.20/1,718.28 = 560.87/x
  3. Step 3: Cross multiply
    1,146.20x = 1,718.28 × 560.87
  4. Step 4: Simplify right side
    1,146.20x = 963,729.56
  5. Step 5: Solve for x
    x = 963,729.56/1,146.20
  6. Step 6: Final answer
    x = 840.81

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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.