Home / 1,382.52-2,068.98-1,302.57

Finding the Fourth Proportional to 1,382.52, 2,068.98 and 1,302.57

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Solution

The fourth proportional to 1,382.52, 2,068.98 and 1,302.57 is: 1,949.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382.52 : 2,068.98 = 1,302.57 : x
  2. Step 2: Convert to fraction form
    1,382.52/2,068.98 = 1,302.57/x
  3. Step 3: Cross multiply
    1,382.52x = 2,068.98 × 1,302.57
  4. Step 4: Simplify right side
    1,382.52x = 2,694,991.28
  5. Step 5: Solve for x
    x = 2,694,991.28/1,382.52
  6. Step 6: Final answer
    x = 1,949.33

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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.