Home / 4,119.88-5,685.24-2,943.76

Finding the Fourth Proportional to 4,119.88, 5,685.24 and 2,943.76

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Solution

The fourth proportional to 4,119.88, 5,685.24 and 2,943.76 is: 4,062.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.88 : 5,685.24 = 2,943.76 : x
  2. Step 2: Convert to fraction form
    4,119.88/5,685.24 = 2,943.76/x
  3. Step 3: Cross multiply
    4,119.88x = 5,685.24 × 2,943.76
  4. Step 4: Simplify right side
    4,119.88x = 16,735,982.10
  5. Step 5: Solve for x
    x = 16,735,982.10/4,119.88
  6. Step 6: Final answer
    x = 4,062.25

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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.