Home / 5,456.20-7,528.40-3,774.92

Finding the Fourth Proportional to 5,456.20, 7,528.40 and 3,774.92

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Solution

The fourth proportional to 5,456.20, 7,528.40 and 3,774.92 is: 5,208.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.20 : 7,528.40 = 3,774.92 : x
  2. Step 2: Convert to fraction form
    5,456.20/7,528.40 = 3,774.92/x
  3. Step 3: Cross multiply
    5,456.20x = 7,528.40 × 3,774.92
  4. Step 4: Simplify right side
    5,456.20x = 28,419,107.73
  5. Step 5: Solve for x
    x = 28,419,107.73/5,456.20
  6. Step 6: Final answer
    x = 5,208.59

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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.