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Finding the Fourth Proportional to 1,928.52, 2,889.42 and 952.20

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Solution

The fourth proportional to 1,928.52, 2,889.42 and 952.20 is: 1,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.52 : 2,889.42 = 952.20 : x
  2. Step 2: Convert to fraction form
    1,928.52/2,889.42 = 952.20/x
  3. Step 3: Cross multiply
    1,928.52x = 2,889.42 × 952.20
  4. Step 4: Simplify right side
    1,928.52x = 2,751,305.72
  5. Step 5: Solve for x
    x = 2,751,305.72/1,928.52
  6. Step 6: Final answer
    x = 1,426.64

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1.5x scale

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.