Home / 5,427.87-7,490.39-3,189.99

Finding the Fourth Proportional to 5,427.87, 7,490.39 and 3,189.99

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Solution

The fourth proportional to 5,427.87, 7,490.39 and 3,189.99 is: 4,402.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.87 : 7,490.39 = 3,189.99 : x
  2. Step 2: Convert to fraction form
    5,427.87/7,490.39 = 3,189.99/x
  3. Step 3: Cross multiply
    5,427.87x = 7,490.39 × 3,189.99
  4. Step 4: Simplify right side
    5,427.87x = 23,894,269.20
  5. Step 5: Solve for x
    x = 23,894,269.20/5,427.87
  6. Step 6: Final answer
    x = 4,402.14

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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.