Home / 3,921.91-5,411.54-2,350.04

Finding the Fourth Proportional to 3,921.91, 5,411.54 and 2,350.04

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Solution

The fourth proportional to 3,921.91, 5,411.54 and 2,350.04 is: 3,242.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.91 : 5,411.54 = 2,350.04 : x
  2. Step 2: Convert to fraction form
    3,921.91/5,411.54 = 2,350.04/x
  3. Step 3: Cross multiply
    3,921.91x = 5,411.54 × 2,350.04
  4. Step 4: Simplify right side
    3,921.91x = 12,717,314.28
  5. Step 5: Solve for x
    x = 12,717,314.28/3,921.91
  6. Step 6: Final answer
    x = 3,242.63

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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.