Home / 1,155.34-1,733.18-425.94

Finding the Fourth Proportional to 1,155.34, 1,733.18 and 425.94

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Solution

The fourth proportional to 1,155.34, 1,733.18 and 425.94 is: 638.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.34 : 1,733.18 = 425.94 : x
  2. Step 2: Convert to fraction form
    1,155.34/1,733.18 = 425.94/x
  3. Step 3: Cross multiply
    1,155.34x = 1,733.18 × 425.94
  4. Step 4: Simplify right side
    1,155.34x = 738,230.69
  5. Step 5: Solve for x
    x = 738,230.69/1,155.34
  6. Step 6: Final answer
    x = 638.97

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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.