Home / 1,489.38-2,058.39-1,157.46

Finding the Fourth Proportional to 1,489.38, 2,058.39 and 1,157.46

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Solution

The fourth proportional to 1,489.38, 2,058.39 and 1,157.46 is: 1,599.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489.38 : 2,058.39 = 1,157.46 : x
  2. Step 2: Convert to fraction form
    1,489.38/2,058.39 = 1,157.46/x
  3. Step 3: Cross multiply
    1,489.38x = 2,058.39 × 1,157.46
  4. Step 4: Simplify right side
    1,489.38x = 2,382,504.09
  5. Step 5: Solve for x
    x = 2,382,504.09/1,489.38
  6. Step 6: Final answer
    x = 1,599.66

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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.