Home / 1,184.27-1,634.20-686.82

Finding the Fourth Proportional to 1,184.27, 1,634.20 and 686.82

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Solution

The fourth proportional to 1,184.27, 1,634.20 and 686.82 is: 947.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.27 : 1,634.20 = 686.82 : x
  2. Step 2: Convert to fraction form
    1,184.27/1,634.20 = 686.82/x
  3. Step 3: Cross multiply
    1,184.27x = 1,634.20 × 686.82
  4. Step 4: Simplify right side
    1,184.27x = 1,122,397.81
  5. Step 5: Solve for x
    x = 1,122,397.81/1,184.27
  6. Step 6: Final answer
    x = 947.76

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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.