Home / 5,392.76-7,419.75-4,211.78

Finding the Fourth Proportional to 5,392.76, 7,419.75 and 4,211.78

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Solution

The fourth proportional to 5,392.76, 7,419.75 and 4,211.78 is: 5,794.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,392.76 : 7,419.75 = 4,211.78 : x
  2. Step 2: Convert to fraction form
    5,392.76/7,419.75 = 4,211.78/x
  3. Step 3: Cross multiply
    5,392.76x = 7,419.75 × 4,211.78
  4. Step 4: Simplify right side
    5,392.76x = 31,250,354.66
  5. Step 5: Solve for x
    x = 31,250,354.66/5,392.76
  6. Step 6: Final answer
    x = 5,794.87

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Half scale
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Double scale
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1.5x scale

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.