Home / 1,148.38-1,584.79-624.44

Finding the Fourth Proportional to 1,148.38, 1,584.79 and 624.44

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Solution

The fourth proportional to 1,148.38, 1,584.79 and 624.44 is: 861.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.38 : 1,584.79 = 624.44 : x
  2. Step 2: Convert to fraction form
    1,148.38/1,584.79 = 624.44/x
  3. Step 3: Cross multiply
    1,148.38x = 1,584.79 × 624.44
  4. Step 4: Simplify right side
    1,148.38x = 989,606.27
  5. Step 5: Solve for x
    x = 989,606.27/1,148.38
  6. Step 6: Final answer
    x = 861.74

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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.