Home / 3,108.61-4,285.60-2,222.88

Finding the Fourth Proportional to 3,108.61, 4,285.60 and 2,222.88

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Solution

The fourth proportional to 3,108.61, 4,285.60 and 2,222.88 is: 3,064.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.61 : 4,285.60 = 2,222.88 : x
  2. Step 2: Convert to fraction form
    3,108.61/4,285.60 = 2,222.88/x
  3. Step 3: Cross multiply
    3,108.61x = 4,285.60 × 2,222.88
  4. Step 4: Simplify right side
    3,108.61x = 9,526,374.53
  5. Step 5: Solve for x
    x = 9,526,374.53/3,108.61
  6. Step 6: Final answer
    x = 3,064.51

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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.