Home / 1,148.51-1,584.90-624.54

Finding the Fourth Proportional to 1,148.51, 1,584.90 and 624.54

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Solution

The fourth proportional to 1,148.51, 1,584.90 and 624.54 is: 861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.51 : 1,584.90 = 624.54 : x
  2. Step 2: Convert to fraction form
    1,148.51/1,584.90 = 624.54/x
  3. Step 3: Cross multiply
    1,148.51x = 1,584.90 × 624.54
  4. Step 4: Simplify right side
    1,148.51x = 989,833.45
  5. Step 5: Solve for x
    x = 989,833.45/1,148.51
  6. Step 6: Final answer
    x = 861.85

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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.