Home / 3,126.74-4,312.49-2,182.22

Finding the Fourth Proportional to 3,126.74, 4,312.49 and 2,182.22

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Solution

The fourth proportional to 3,126.74, 4,312.49 and 2,182.22 is: 3,009.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.74 : 4,312.49 = 2,182.22 : x
  2. Step 2: Convert to fraction form
    3,126.74/4,312.49 = 2,182.22/x
  3. Step 3: Cross multiply
    3,126.74x = 4,312.49 × 2,182.22
  4. Step 4: Simplify right side
    3,126.74x = 9,410,822.16
  5. Step 5: Solve for x
    x = 9,410,822.16/3,126.74
  6. Step 6: Final answer
    x = 3,009.79

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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.