Home / 3,921.88-5,876.16-2,457.76

Finding the Fourth Proportional to 3,921.88, 5,876.16 and 2,457.76

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Solution

The fourth proportional to 3,921.88, 5,876.16 and 2,457.76 is: 3,682.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.88 : 5,876.16 = 2,457.76 : x
  2. Step 2: Convert to fraction form
    3,921.88/5,876.16 = 2,457.76/x
  3. Step 3: Cross multiply
    3,921.88x = 5,876.16 × 2,457.76
  4. Step 4: Simplify right side
    3,921.88x = 14,442,191.00
  5. Step 5: Solve for x
    x = 14,442,191.00/3,921.88
  6. Step 6: Final answer
    x = 3,682.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.