Home / 5,150.59-7,107.73-2,912.39

Finding the Fourth Proportional to 5,150.59, 7,107.73 and 2,912.39

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Solution

The fourth proportional to 5,150.59, 7,107.73 and 2,912.39 is: 4,019.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.59 : 7,107.73 = 2,912.39 : x
  2. Step 2: Convert to fraction form
    5,150.59/7,107.73 = 2,912.39/x
  3. Step 3: Cross multiply
    5,150.59x = 7,107.73 × 2,912.39
  4. Step 4: Simplify right side
    5,150.59x = 20,700,467.21
  5. Step 5: Solve for x
    x = 20,700,467.21/5,150.59
  6. Step 6: Final answer
    x = 4,019.05

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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.