Home / 4,119.88-5,685.56-2,256.88

Finding the Fourth Proportional to 4,119.88, 5,685.56 and 2,256.88

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Solution

The fourth proportional to 4,119.88, 5,685.56 and 2,256.88 is: 3,114.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.88 : 5,685.56 = 2,256.88 : x
  2. Step 2: Convert to fraction form
    4,119.88/5,685.56 = 2,256.88/x
  3. Step 3: Cross multiply
    4,119.88x = 5,685.56 × 2,256.88
  4. Step 4: Simplify right side
    4,119.88x = 12,831,626.65
  5. Step 5: Solve for x
    x = 12,831,626.65/4,119.88
  6. Step 6: Final answer
    x = 3,114.56

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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.