Home / 4,253.12-6,380.08-2,172.24

Finding the Fourth Proportional to 4,253.12, 6,380.08 and 2,172.24

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Solution

The fourth proportional to 4,253.12, 6,380.08 and 2,172.24 is: 3,258.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.12 : 6,380.08 = 2,172.24 : x
  2. Step 2: Convert to fraction form
    4,253.12/6,380.08 = 2,172.24/x
  3. Step 3: Cross multiply
    4,253.12x = 6,380.08 × 2,172.24
  4. Step 4: Simplify right side
    4,253.12x = 13,859,064.98
  5. Step 5: Solve for x
    x = 13,859,064.98/4,253.12
  6. Step 6: Final answer
    x = 3,258.56

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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.