Home / 2,271.22-3,134.11-1,276.30

Finding the Fourth Proportional to 2,271.22, 3,134.11 and 1,276.30

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Solution

The fourth proportional to 2,271.22, 3,134.11 and 1,276.30 is: 1,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.22 : 3,134.11 = 1,276.30 : x
  2. Step 2: Convert to fraction form
    2,271.22/3,134.11 = 1,276.30/x
  3. Step 3: Cross multiply
    2,271.22x = 3,134.11 × 1,276.30
  4. Step 4: Simplify right side
    2,271.22x = 4,000,067.71
  5. Step 5: Solve for x
    x = 4,000,067.71/2,271.22
  6. Step 6: Final answer
    x = 1,761.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.