Home / 7,149.20-10,722.36-4,548.56

Finding the Fourth Proportional to 7,149.20, 10,722.36 and 4,548.56

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Solution

The fourth proportional to 7,149.20, 10,722.36 and 4,548.56 is: 6,821.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.20 : 10,722.36 = 4,548.56 : x
  2. Step 2: Convert to fraction form
    7,149.20/10,722.36 = 4,548.56/x
  3. Step 3: Cross multiply
    7,149.20x = 10,722.36 × 4,548.56
  4. Step 4: Simplify right side
    7,149.20x = 48,771,297.80
  5. Step 5: Solve for x
    x = 48,771,297.80/7,149.20
  6. Step 6: Final answer
    x = 6,821.92

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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.