Home / 1,158.17-1,738.13-850.81

Finding the Fourth Proportional to 1,158.17, 1,738.13 and 850.81

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Solution

The fourth proportional to 1,158.17, 1,738.13 and 850.81 is: 1,276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158.17 : 1,738.13 = 850.81 : x
  2. Step 2: Convert to fraction form
    1,158.17/1,738.13 = 850.81/x
  3. Step 3: Cross multiply
    1,158.17x = 1,738.13 × 850.81
  4. Step 4: Simplify right side
    1,158.17x = 1,478,805.44
  5. Step 5: Solve for x
    x = 1,478,805.44/1,158.17
  6. Step 6: Final answer
    x = 1,276.85

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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.