Home / 1,089.19-1,633.17-358.57

Finding the Fourth Proportional to 1,089.19, 1,633.17 and 358.57

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Solution

The fourth proportional to 1,089.19, 1,633.17 and 358.57 is: 537.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089.19 : 1,633.17 = 358.57 : x
  2. Step 2: Convert to fraction form
    1,089.19/1,633.17 = 358.57/x
  3. Step 3: Cross multiply
    1,089.19x = 1,633.17 × 358.57
  4. Step 4: Simplify right side
    1,089.19x = 585,605.77
  5. Step 5: Solve for x
    x = 585,605.77/1,089.19
  6. Step 6: Final answer
    x = 537.65

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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.