Home / 3,126.35-4,314.62-1,947.59

Finding the Fourth Proportional to 3,126.35, 4,314.62 and 1,947.59

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Solution

The fourth proportional to 3,126.35, 4,314.62 and 1,947.59 is: 2,687.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.35 : 4,314.62 = 1,947.59 : x
  2. Step 2: Convert to fraction form
    3,126.35/4,314.62 = 1,947.59/x
  3. Step 3: Cross multiply
    3,126.35x = 4,314.62 × 1,947.59
  4. Step 4: Simplify right side
    3,126.35x = 8,403,101.03
  5. Step 5: Solve for x
    x = 8,403,101.03/3,126.35
  6. Step 6: Final answer
    x = 2,687.84

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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.