Home / 1,148.52-1,584.95-624.56

Finding the Fourth Proportional to 1,148.52, 1,584.95 and 624.56

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Solution

The fourth proportional to 1,148.52, 1,584.95 and 624.56 is: 861.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.52 : 1,584.95 = 624.56 : x
  2. Step 2: Convert to fraction form
    1,148.52/1,584.95 = 624.56/x
  3. Step 3: Cross multiply
    1,148.52x = 1,584.95 × 624.56
  4. Step 4: Simplify right side
    1,148.52x = 989,890.01
  5. Step 5: Solve for x
    x = 989,890.01/1,148.52
  6. Step 6: Final answer
    x = 861.88

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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.