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Finding the Fourth Proportional to 1,425.17, 1,966.66 and 795.76

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Solution

The fourth proportional to 1,425.17, 1,966.66 and 795.76 is: 1,098.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425.17 : 1,966.66 = 795.76 : x
  2. Step 2: Convert to fraction form
    1,425.17/1,966.66 = 795.76/x
  3. Step 3: Cross multiply
    1,425.17x = 1,966.66 × 795.76
  4. Step 4: Simplify right side
    1,425.17x = 1,564,989.36
  5. Step 5: Solve for x
    x = 1,564,989.36/1,425.17
  6. Step 6: Final answer
    x = 1,098.11

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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.