Home / 5,472.40-8,208.60-4,378.90

Finding the Fourth Proportional to 5,472.40, 8,208.60 and 4,378.90

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Solution

The fourth proportional to 5,472.40, 8,208.60 and 4,378.90 is: 6,568.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,472.40 : 8,208.60 = 4,378.90 : x
  2. Step 2: Convert to fraction form
    5,472.40/8,208.60 = 4,378.90/x
  3. Step 3: Cross multiply
    5,472.40x = 8,208.60 × 4,378.90
  4. Step 4: Simplify right side
    5,472.40x = 35,944,638.54
  5. Step 5: Solve for x
    x = 35,944,638.54/5,472.40
  6. Step 6: Final answer
    x = 6,568.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.