Home / 5,150.71-7,107.69-2,912.44

Finding the Fourth Proportional to 5,150.71, 7,107.69 and 2,912.44

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Solution

The fourth proportional to 5,150.71, 7,107.69 and 2,912.44 is: 4,019.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.71 : 7,107.69 = 2,912.44 : x
  2. Step 2: Convert to fraction form
    5,150.71/7,107.69 = 2,912.44/x
  3. Step 3: Cross multiply
    5,150.71x = 7,107.69 × 2,912.44
  4. Step 4: Simplify right side
    5,150.71x = 20,700,720.66
  5. Step 5: Solve for x
    x = 20,700,720.66/5,150.71
  6. Step 6: Final answer
    x = 4,019.00

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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.