Home / 1,118.27-1,677.33-348.77

Finding the Fourth Proportional to 1,118.27, 1,677.33 and 348.77

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Solution

The fourth proportional to 1,118.27, 1,677.33 and 348.77 is: 523.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118.27 : 1,677.33 = 348.77 : x
  2. Step 2: Convert to fraction form
    1,118.27/1,677.33 = 348.77/x
  3. Step 3: Cross multiply
    1,118.27x = 1,677.33 × 348.77
  4. Step 4: Simplify right side
    1,118.27x = 585,002.38
  5. Step 5: Solve for x
    x = 585,002.38/1,118.27
  6. Step 6: Final answer
    x = 523.13

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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.