Home / 7,949.90-11,923.48-2,107.10

Finding the Fourth Proportional to 7,949.90, 11,923.48 and 2,107.10

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Solution

The fourth proportional to 7,949.90, 11,923.48 and 2,107.10 is: 3,160.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,949.90 : 11,923.48 = 2,107.10 : x
  2. Step 2: Convert to fraction form
    7,949.90/11,923.48 = 2,107.10/x
  3. Step 3: Cross multiply
    7,949.90x = 11,923.48 × 2,107.10
  4. Step 4: Simplify right side
    7,949.90x = 25,123,964.71
  5. Step 5: Solve for x
    x = 25,123,964.71/7,949.90
  6. Step 6: Final answer
    x = 3,160.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.