Home / 2,972.97-4,104.89-2,266.05

Finding the Fourth Proportional to 2,972.97, 4,104.89 and 2,266.05

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Solution

The fourth proportional to 2,972.97, 4,104.89 and 2,266.05 is: 3,128.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.97 : 4,104.89 = 2,266.05 : x
  2. Step 2: Convert to fraction form
    2,972.97/4,104.89 = 2,266.05/x
  3. Step 3: Cross multiply
    2,972.97x = 4,104.89 × 2,266.05
  4. Step 4: Simplify right side
    2,972.97x = 9,301,885.98
  5. Step 5: Solve for x
    x = 9,301,885.98/2,972.97
  6. Step 6: Final answer
    x = 3,128.82

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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.