Home / 5,525.20-8,278.20-4,757.20

Finding the Fourth Proportional to 5,525.20, 8,278.20 and 4,757.20

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Solution

The fourth proportional to 5,525.20, 8,278.20 and 4,757.20 is: 7,127.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,525.20 : 8,278.20 = 4,757.20 : x
  2. Step 2: Convert to fraction form
    5,525.20/8,278.20 = 4,757.20/x
  3. Step 3: Cross multiply
    5,525.20x = 8,278.20 × 4,757.20
  4. Step 4: Simplify right side
    5,525.20x = 39,381,053.04
  5. Step 5: Solve for x
    x = 39,381,053.04/5,525.20
  6. Step 6: Final answer
    x = 7,127.53

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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.