Home / 3,122.49-4,304.16-2,126.06

Finding the Fourth Proportional to 3,122.49, 4,304.16 and 2,126.06

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Solution

The fourth proportional to 3,122.49, 4,304.16 and 2,126.06 is: 2,930.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.49 : 4,304.16 = 2,126.06 : x
  2. Step 2: Convert to fraction form
    3,122.49/4,304.16 = 2,126.06/x
  3. Step 3: Cross multiply
    3,122.49x = 4,304.16 × 2,126.06
  4. Step 4: Simplify right side
    3,122.49x = 9,150,902.41
  5. Step 5: Solve for x
    x = 9,150,902.41/3,122.49
  6. Step 6: Final answer
    x = 2,930.64

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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.