Home / 7,209.40-9,949.74-4,414.20

Finding the Fourth Proportional to 7,209.40, 9,949.74 and 4,414.20

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Solution

The fourth proportional to 7,209.40, 9,949.74 and 4,414.20 is: 6,092.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.40 : 9,949.74 = 4,414.20 : x
  2. Step 2: Convert to fraction form
    7,209.40/9,949.74 = 4,414.20/x
  3. Step 3: Cross multiply
    7,209.40x = 9,949.74 × 4,414.20
  4. Step 4: Simplify right side
    7,209.40x = 43,920,142.31
  5. Step 5: Solve for x
    x = 43,920,142.31/7,209.40
  6. Step 6: Final answer
    x = 6,092.07

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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.