Home / 1,229.52-1,694.59-1,071.16

Finding the Fourth Proportional to 1,229.52, 1,694.59 and 1,071.16

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Solution

The fourth proportional to 1,229.52, 1,694.59 and 1,071.16 is: 1,476.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.52 : 1,694.59 = 1,071.16 : x
  2. Step 2: Convert to fraction form
    1,229.52/1,694.59 = 1,071.16/x
  3. Step 3: Cross multiply
    1,229.52x = 1,694.59 × 1,071.16
  4. Step 4: Simplify right side
    1,229.52x = 1,815,177.02
  5. Step 5: Solve for x
    x = 1,815,177.02/1,229.52
  6. Step 6: Final answer
    x = 1,476.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.