Home / 2,126.91-3,189.12-1,566.49

Finding the Fourth Proportional to 2,126.91, 3,189.12 and 1,566.49

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Solution

The fourth proportional to 2,126.91, 3,189.12 and 1,566.49 is: 2,348.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.91 : 3,189.12 = 1,566.49 : x
  2. Step 2: Convert to fraction form
    2,126.91/3,189.12 = 1,566.49/x
  3. Step 3: Cross multiply
    2,126.91x = 3,189.12 × 1,566.49
  4. Step 4: Simplify right side
    2,126.91x = 4,995,725.53
  5. Step 5: Solve for x
    x = 4,995,725.53/2,126.91
  6. Step 6: Final answer
    x = 2,348.82

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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.