Home / 2,126.28-3,184.56-1,912.44

Finding the Fourth Proportional to 2,126.28, 3,184.56 and 1,912.44

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Solution

The fourth proportional to 2,126.28, 3,184.56 and 1,912.44 is: 2,864.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.28 : 3,184.56 = 1,912.44 : x
  2. Step 2: Convert to fraction form
    2,126.28/3,184.56 = 1,912.44/x
  3. Step 3: Cross multiply
    2,126.28x = 3,184.56 × 1,912.44
  4. Step 4: Simplify right side
    2,126.28x = 6,090,279.93
  5. Step 5: Solve for x
    x = 6,090,279.93/2,126.28
  6. Step 6: Final answer
    x = 2,864.29

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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.