Home / 1,151.60-1,718.55-1,028.57

Finding the Fourth Proportional to 1,151.60, 1,718.55 and 1,028.57

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Solution

The fourth proportional to 1,151.60, 1,718.55 and 1,028.57 is: 1,534.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.60 : 1,718.55 = 1,028.57 : x
  2. Step 2: Convert to fraction form
    1,151.60/1,718.55 = 1,028.57/x
  3. Step 3: Cross multiply
    1,151.60x = 1,718.55 × 1,028.57
  4. Step 4: Simplify right side
    1,151.60x = 1,767,640.38
  5. Step 5: Solve for x
    x = 1,767,640.38/1,151.60
  6. Step 6: Final answer
    x = 1,534.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.