Home / 4,887.20-7,330.82-1,189.45

Finding the Fourth Proportional to 4,887.20, 7,330.82 and 1,189.45

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Solution

The fourth proportional to 4,887.20, 7,330.82 and 1,189.45 is: 1,784.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.20 : 7,330.82 = 1,189.45 : x
  2. Step 2: Convert to fraction form
    4,887.20/7,330.82 = 1,189.45/x
  3. Step 3: Cross multiply
    4,887.20x = 7,330.82 × 1,189.45
  4. Step 4: Simplify right side
    4,887.20x = 8,719,601.25
  5. Step 5: Solve for x
    x = 8,719,601.25/4,887.20
  6. Step 6: Final answer
    x = 1,784.17

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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.