Home / 2,422.85-3,344.07-1,538.49

Finding the Fourth Proportional to 2,422.85, 3,344.07 and 1,538.49

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Solution

The fourth proportional to 2,422.85, 3,344.07 and 1,538.49 is: 2,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.85 : 3,344.07 = 1,538.49 : x
  2. Step 2: Convert to fraction form
    2,422.85/3,344.07 = 1,538.49/x
  3. Step 3: Cross multiply
    2,422.85x = 3,344.07 × 1,538.49
  4. Step 4: Simplify right side
    2,422.85x = 5,144,801.53
  5. Step 5: Solve for x
    x = 5,144,801.53/2,422.85
  6. Step 6: Final answer
    x = 2,123.45

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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.