Home / 3,921.42-5,411.16-2,349.30

Finding the Fourth Proportional to 3,921.42, 5,411.16 and 2,349.30

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Solution

The fourth proportional to 3,921.42, 5,411.16 and 2,349.30 is: 3,241.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.42 : 5,411.16 = 2,349.30 : x
  2. Step 2: Convert to fraction form
    3,921.42/5,411.16 = 2,349.30/x
  3. Step 3: Cross multiply
    3,921.42x = 5,411.16 × 2,349.30
  4. Step 4: Simplify right side
    3,921.42x = 12,712,438.19
  5. Step 5: Solve for x
    x = 12,712,438.19/3,921.42
  6. Step 6: Final answer
    x = 3,241.79

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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.