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Finding the Fourth Proportional to 1,931.52, 2,665.44 and 1,103.52

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Solution

The fourth proportional to 1,931.52, 2,665.44 and 1,103.52 is: 1,522.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.52 : 2,665.44 = 1,103.52 : x
  2. Step 2: Convert to fraction form
    1,931.52/2,665.44 = 1,103.52/x
  3. Step 3: Cross multiply
    1,931.52x = 2,665.44 × 1,103.52
  4. Step 4: Simplify right side
    1,931.52x = 2,941,366.35
  5. Step 5: Solve for x
    x = 2,941,366.35/1,931.52
  6. Step 6: Final answer
    x = 1,522.82

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