Home / 4,120.22-5,685.98-2,257.22

Finding the Fourth Proportional to 4,120.22, 5,685.98 and 2,257.22

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Solution

The fourth proportional to 4,120.22, 5,685.98 and 2,257.22 is: 3,115.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.22 : 5,685.98 = 2,257.22 : x
  2. Step 2: Convert to fraction form
    4,120.22/5,685.98 = 2,257.22/x
  3. Step 3: Cross multiply
    4,120.22x = 5,685.98 × 2,257.22
  4. Step 4: Simplify right side
    4,120.22x = 12,834,468.06
  5. Step 5: Solve for x
    x = 12,834,468.06/4,120.22
  6. Step 6: Final answer
    x = 3,115.00

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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.