Home / 3,921.24-5,411.10-2,242.80

Finding the Fourth Proportional to 3,921.24, 5,411.10 and 2,242.80

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Solution

The fourth proportional to 3,921.24, 5,411.10 and 2,242.80 is: 3,094.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.24 : 5,411.10 = 2,242.80 : x
  2. Step 2: Convert to fraction form
    3,921.24/5,411.10 = 2,242.80/x
  3. Step 3: Cross multiply
    3,921.24x = 5,411.10 × 2,242.80
  4. Step 4: Simplify right side
    3,921.24x = 12,136,015.08
  5. Step 5: Solve for x
    x = 12,136,015.08/3,921.24
  6. Step 6: Final answer
    x = 3,094.94

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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.