Home / 3,921.25-5,411.14-2,350.21

Finding the Fourth Proportional to 3,921.25, 5,411.14 and 2,350.21

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Solution

The fourth proportional to 3,921.25, 5,411.14 and 2,350.21 is: 3,243.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.25 : 5,411.14 = 2,350.21 : x
  2. Step 2: Convert to fraction form
    3,921.25/5,411.14 = 2,350.21/x
  3. Step 3: Cross multiply
    3,921.25x = 5,411.14 × 2,350.21
  4. Step 4: Simplify right side
    3,921.25x = 12,717,315.34
  5. Step 5: Solve for x
    x = 12,717,315.34/3,921.25
  6. Step 6: Final answer
    x = 3,243.18

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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.