Home / 3,826.78-5,280.33-2,254.66

Finding the Fourth Proportional to 3,826.78, 5,280.33 and 2,254.66

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Solution

The fourth proportional to 3,826.78, 5,280.33 and 2,254.66 is: 3,111.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.78 : 5,280.33 = 2,254.66 : x
  2. Step 2: Convert to fraction form
    3,826.78/5,280.33 = 2,254.66/x
  3. Step 3: Cross multiply
    3,826.78x = 5,280.33 × 2,254.66
  4. Step 4: Simplify right side
    3,826.78x = 11,905,348.84
  5. Step 5: Solve for x
    x = 11,905,348.84/3,826.78
  6. Step 6: Final answer
    x = 3,111.06

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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.