Home / 3,381.25-5,047.40-2,921.98

Finding the Fourth Proportional to 3,381.25, 5,047.40 and 2,921.98

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Solution

The fourth proportional to 3,381.25, 5,047.40 and 2,921.98 is: 4,361.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.25 : 5,047.40 = 2,921.98 : x
  2. Step 2: Convert to fraction form
    3,381.25/5,047.40 = 2,921.98/x
  3. Step 3: Cross multiply
    3,381.25x = 5,047.40 × 2,921.98
  4. Step 4: Simplify right side
    3,381.25x = 14,748,387.24
  5. Step 5: Solve for x
    x = 14,748,387.24/3,381.25
  6. Step 6: Final answer
    x = 4,361.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.