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Finding the Fourth Proportional to 1,349.44, 1,863.84 and 958.16

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Solution

The fourth proportional to 1,349.44, 1,863.84 and 958.16 is: 1,323.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.44 : 1,863.84 = 958.16 : x
  2. Step 2: Convert to fraction form
    1,349.44/1,863.84 = 958.16/x
  3. Step 3: Cross multiply
    1,349.44x = 1,863.84 × 958.16
  4. Step 4: Simplify right side
    1,349.44x = 1,785,856.93
  5. Step 5: Solve for x
    x = 1,785,856.93/1,349.44
  6. Step 6: Final answer
    x = 1,323.41

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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.