Home / 3,948.50-5,449.23-2,270.32

Finding the Fourth Proportional to 3,948.50, 5,449.23 and 2,270.32

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Solution

The fourth proportional to 3,948.50, 5,449.23 and 2,270.32 is: 3,133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.50 : 5,449.23 = 2,270.32 : x
  2. Step 2: Convert to fraction form
    3,948.50/5,449.23 = 2,270.32/x
  3. Step 3: Cross multiply
    3,948.50x = 5,449.23 × 2,270.32
  4. Step 4: Simplify right side
    3,948.50x = 12,371,495.85
  5. Step 5: Solve for x
    x = 12,371,495.85/3,948.50
  6. Step 6: Final answer
    x = 3,133.21

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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.