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Finding the Fourth Proportional to 1,524, 2,102.96 and 934.40

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Solution

The fourth proportional to 1,524, 2,102.96 and 934.40 is: 1,289.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,524 : 2,102.96 = 934.40 : x
  2. Step 2: Convert to fraction form
    1,524/2,102.96 = 934.40/x
  3. Step 3: Cross multiply
    1,524x = 2,102.96 × 934.40
  4. Step 4: Simplify right side
    1,524x = 1,965,005.82
  5. Step 5: Solve for x
    x = 1,965,005.82/1,524
  6. Step 6: Final answer
    x = 1,289.37

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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.