Home / 6,126.71-9,187.21-1,965.78

Finding the Fourth Proportional to 6,126.71, 9,187.21 and 1,965.78

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Solution

The fourth proportional to 6,126.71, 9,187.21 and 1,965.78 is: 2,947.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,126.71 : 9,187.21 = 1,965.78 : x
  2. Step 2: Convert to fraction form
    6,126.71/9,187.21 = 1,965.78/x
  3. Step 3: Cross multiply
    6,126.71x = 9,187.21 × 1,965.78
  4. Step 4: Simplify right side
    6,126.71x = 18,060,033.67
  5. Step 5: Solve for x
    x = 18,060,033.67/6,126.71
  6. Step 6: Final answer
    x = 2,947.75

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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.