Home / 4,887.45-7,331.19-1,189.69

Finding the Fourth Proportional to 4,887.45, 7,331.19 and 1,189.69

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Solution

The fourth proportional to 4,887.45, 7,331.19 and 1,189.69 is: 1,784.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.45 : 7,331.19 = 1,189.69 : x
  2. Step 2: Convert to fraction form
    4,887.45/7,331.19 = 1,189.69/x
  3. Step 3: Cross multiply
    4,887.45x = 7,331.19 × 1,189.69
  4. Step 4: Simplify right side
    4,887.45x = 8,721,825.10
  5. Step 5: Solve for x
    x = 8,721,825.10/4,887.45
  6. Step 6: Final answer
    x = 1,784.53

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Similar ratio
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1.5x scale

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.