Home / 3,158.90-4,348.05-2,225.78

Finding the Fourth Proportional to 3,158.90, 4,348.05 and 2,225.78

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Solution

The fourth proportional to 3,158.90, 4,348.05 and 2,225.78 is: 3,063.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.90 : 4,348.05 = 2,225.78 : x
  2. Step 2: Convert to fraction form
    3,158.90/4,348.05 = 2,225.78/x
  3. Step 3: Cross multiply
    3,158.90x = 4,348.05 × 2,225.78
  4. Step 4: Simplify right side
    3,158.90x = 9,677,802.73
  5. Step 5: Solve for x
    x = 9,677,802.73/3,158.90
  6. Step 6: Final answer
    x = 3,063.66

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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.