Home / 1,184.17-1,634.14-686.89

Finding the Fourth Proportional to 1,184.17, 1,634.14 and 686.89

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Solution

The fourth proportional to 1,184.17, 1,634.14 and 686.89 is: 947.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.17 : 1,634.14 = 686.89 : x
  2. Step 2: Convert to fraction form
    1,184.17/1,634.14 = 686.89/x
  3. Step 3: Cross multiply
    1,184.17x = 1,634.14 × 686.89
  4. Step 4: Simplify right side
    1,184.17x = 1,122,476.73
  5. Step 5: Solve for x
    x = 1,122,476.73/1,184.17
  6. Step 6: Final answer
    x = 947.90

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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.