Home / 3,659.88-5,045.06-2,872.56

Finding the Fourth Proportional to 3,659.88, 5,045.06 and 2,872.56

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Solution

The fourth proportional to 3,659.88, 5,045.06 and 2,872.56 is: 3,959.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659.88 : 5,045.06 = 2,872.56 : x
  2. Step 2: Convert to fraction form
    3,659.88/5,045.06 = 2,872.56/x
  3. Step 3: Cross multiply
    3,659.88x = 5,045.06 × 2,872.56
  4. Step 4: Simplify right side
    3,659.88x = 14,492,237.55
  5. Step 5: Solve for x
    x = 14,492,237.55/3,659.88
  6. Step 6: Final answer
    x = 3,959.76

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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.