Home / 5,141.19-7,711.79-1,245.59

Finding the Fourth Proportional to 5,141.19, 7,711.79 and 1,245.59

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Solution

The fourth proportional to 5,141.19, 7,711.79 and 1,245.59 is: 1,868.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.19 : 7,711.79 = 1,245.59 : x
  2. Step 2: Convert to fraction form
    5,141.19/7,711.79 = 1,245.59/x
  3. Step 3: Cross multiply
    5,141.19x = 7,711.79 × 1,245.59
  4. Step 4: Simplify right side
    5,141.19x = 9,605,693.06
  5. Step 5: Solve for x
    x = 9,605,693.06/5,141.19
  6. Step 6: Final answer
    x = 1,868.38

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Half scale
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Double scale
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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.