Home / 7,257.28-10,888.20-3,309.75

Finding the Fourth Proportional to 7,257.28, 10,888.20 and 3,309.75

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Solution

The fourth proportional to 7,257.28, 10,888.20 and 3,309.75 is: 4,965.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,257.28 : 10,888.20 = 3,309.75 : x
  2. Step 2: Convert to fraction form
    7,257.28/10,888.20 = 3,309.75/x
  3. Step 3: Cross multiply
    7,257.28x = 10,888.20 × 3,309.75
  4. Step 4: Simplify right side
    7,257.28x = 36,037,219.95
  5. Step 5: Solve for x
    x = 36,037,219.95/7,257.28
  6. Step 6: Final answer
    x = 4,965.66

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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.