Home / 1,356.11-2,032.61-624.89

Finding the Fourth Proportional to 1,356.11, 2,032.61 and 624.89

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Solution

The fourth proportional to 1,356.11, 2,032.61 and 624.89 is: 936.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.11 : 2,032.61 = 624.89 : x
  2. Step 2: Convert to fraction form
    1,356.11/2,032.61 = 624.89/x
  3. Step 3: Cross multiply
    1,356.11x = 2,032.61 × 624.89
  4. Step 4: Simplify right side
    1,356.11x = 1,270,144.38
  5. Step 5: Solve for x
    x = 1,270,144.38/1,356.11
  6. Step 6: Final answer
    x = 936.61

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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.