Home / 2,126.32-3,188.25-826.27

Finding the Fourth Proportional to 2,126.32, 3,188.25 and 826.27

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Solution

The fourth proportional to 2,126.32, 3,188.25 and 826.27 is: 1,238.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.32 : 3,188.25 = 826.27 : x
  2. Step 2: Convert to fraction form
    2,126.32/3,188.25 = 826.27/x
  3. Step 3: Cross multiply
    2,126.32x = 3,188.25 × 826.27
  4. Step 4: Simplify right side
    2,126.32x = 2,634,347.36
  5. Step 5: Solve for x
    x = 2,634,347.36/2,126.32
  6. Step 6: Final answer
    x = 1,238.92

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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.