Home / 3,426.12-5,132.16-2,187.72

Finding the Fourth Proportional to 3,426.12, 5,132.16 and 2,187.72

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Solution

The fourth proportional to 3,426.12, 5,132.16 and 2,187.72 is: 3,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.12 : 5,132.16 = 2,187.72 : x
  2. Step 2: Convert to fraction form
    3,426.12/5,132.16 = 2,187.72/x
  3. Step 3: Cross multiply
    3,426.12x = 5,132.16 × 2,187.72
  4. Step 4: Simplify right side
    3,426.12x = 11,227,729.08
  5. Step 5: Solve for x
    x = 11,227,729.08/3,426.12
  6. Step 6: Final answer
    x = 3,277.10

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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.