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Finding the Fourth Proportional to 1,966.28, 2,945.43 and 924.82

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Solution

The fourth proportional to 1,966.28, 2,945.43 and 924.82 is: 1,385.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.28 : 2,945.43 = 924.82 : x
  2. Step 2: Convert to fraction form
    1,966.28/2,945.43 = 924.82/x
  3. Step 3: Cross multiply
    1,966.28x = 2,945.43 × 924.82
  4. Step 4: Simplify right side
    1,966.28x = 2,723,985.21
  5. Step 5: Solve for x
    x = 2,723,985.21/1,966.28
  6. Step 6: Final answer
    x = 1,385.35

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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.