Home / 1,148.22-1,584.54-624.25

Finding the Fourth Proportional to 1,148.22, 1,584.54 and 624.25

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Solution

The fourth proportional to 1,148.22, 1,584.54 and 624.25 is: 861.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.22 : 1,584.54 = 624.25 : x
  2. Step 2: Convert to fraction form
    1,148.22/1,584.54 = 624.25/x
  3. Step 3: Cross multiply
    1,148.22x = 1,584.54 × 624.25
  4. Step 4: Simplify right side
    1,148.22x = 989,149.10
  5. Step 5: Solve for x
    x = 989,149.10/1,148.22
  6. Step 6: Final answer
    x = 861.46

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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.