Home / 3,921.66-5,411.70-2,242.98

Finding the Fourth Proportional to 3,921.66, 5,411.70 and 2,242.98

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Solution

The fourth proportional to 3,921.66, 5,411.70 and 2,242.98 is: 3,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.66 : 5,411.70 = 2,242.98 : x
  2. Step 2: Convert to fraction form
    3,921.66/5,411.70 = 2,242.98/x
  3. Step 3: Cross multiply
    3,921.66x = 5,411.70 × 2,242.98
  4. Step 4: Simplify right side
    3,921.66x = 12,138,334.87
  5. Step 5: Solve for x
    x = 12,138,334.87/3,921.66
  6. Step 6: Final answer
    x = 3,095.20

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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.