Home / 1,376.75-2,062.61-1,229.12

Finding the Fourth Proportional to 1,376.75, 2,062.61 and 1,229.12

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Solution

The fourth proportional to 1,376.75, 2,062.61 and 1,229.12 is: 1,841.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376.75 : 2,062.61 = 1,229.12 : x
  2. Step 2: Convert to fraction form
    1,376.75/2,062.61 = 1,229.12/x
  3. Step 3: Cross multiply
    1,376.75x = 2,062.61 × 1,229.12
  4. Step 4: Simplify right side
    1,376.75x = 2,535,209.60
  5. Step 5: Solve for x
    x = 2,535,209.60/1,376.75
  6. Step 6: Final answer
    x = 1,841.45

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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.