Home / 3,428.30-5,129.45-2,276.30

Finding the Fourth Proportional to 3,428.30, 5,129.45 and 2,276.30

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Solution

The fourth proportional to 3,428.30, 5,129.45 and 2,276.30 is: 3,405.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.30 : 5,129.45 = 2,276.30 : x
  2. Step 2: Convert to fraction form
    3,428.30/5,129.45 = 2,276.30/x
  3. Step 3: Cross multiply
    3,428.30x = 5,129.45 × 2,276.30
  4. Step 4: Simplify right side
    3,428.30x = 11,676,167.04
  5. Step 5: Solve for x
    x = 11,676,167.04/3,428.30
  6. Step 6: Final answer
    x = 3,405.82

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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.