Home / 5,427.83-7,490.49-3,189.76

Finding the Fourth Proportional to 5,427.83, 7,490.49 and 3,189.76

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Solution

The fourth proportional to 5,427.83, 7,490.49 and 3,189.76 is: 4,401.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.83 : 7,490.49 = 3,189.76 : x
  2. Step 2: Convert to fraction form
    5,427.83/7,490.49 = 3,189.76/x
  3. Step 3: Cross multiply
    5,427.83x = 7,490.49 × 3,189.76
  4. Step 4: Simplify right side
    5,427.83x = 23,892,865.38
  5. Step 5: Solve for x
    x = 23,892,865.38/5,427.83
  6. Step 6: Final answer
    x = 4,401.92

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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.