Home / 5,456.79-7,531.28-3,219.22

Finding the Fourth Proportional to 5,456.79, 7,531.28 and 3,219.22

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Solution

The fourth proportional to 5,456.79, 7,531.28 and 3,219.22 is: 4,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.79 : 7,531.28 = 3,219.22 : x
  2. Step 2: Convert to fraction form
    5,456.79/7,531.28 = 3,219.22/x
  3. Step 3: Cross multiply
    5,456.79x = 7,531.28 × 3,219.22
  4. Step 4: Simplify right side
    5,456.79x = 24,244,824.35
  5. Step 5: Solve for x
    x = 24,244,824.35/5,456.79
  6. Step 6: Final answer
    x = 4,443.05

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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.