Home / 3,826.61-5,280.08-2,255.02

Finding the Fourth Proportional to 3,826.61, 5,280.08 and 2,255.02

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Solution

The fourth proportional to 3,826.61, 5,280.08 and 2,255.02 is: 3,111.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.61 : 5,280.08 = 2,255.02 : x
  2. Step 2: Convert to fraction form
    3,826.61/5,280.08 = 2,255.02/x
  3. Step 3: Cross multiply
    3,826.61x = 5,280.08 × 2,255.02
  4. Step 4: Simplify right side
    3,826.61x = 11,906,686.00
  5. Step 5: Solve for x
    x = 11,906,686.00/3,826.61
  6. Step 6: Final answer
    x = 3,111.55

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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.