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Finding the Fourth Proportional to 1,932.64, 2,663.42 and 1,512.32

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Solution

The fourth proportional to 1,932.64, 2,663.42 and 1,512.32 is: 2,084.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.64 : 2,663.42 = 1,512.32 : x
  2. Step 2: Convert to fraction form
    1,932.64/2,663.42 = 1,512.32/x
  3. Step 3: Cross multiply
    1,932.64x = 2,663.42 × 1,512.32
  4. Step 4: Simplify right side
    1,932.64x = 4,027,922.46
  5. Step 5: Solve for x
    x = 4,027,922.46/1,932.64
  6. Step 6: Final answer
    x = 2,084.16

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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.