Home / 5,107.47-7,049.66-3,012.99

Finding the Fourth Proportional to 5,107.47, 7,049.66 and 3,012.99

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Solution

The fourth proportional to 5,107.47, 7,049.66 and 3,012.99 is: 4,158.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.47 : 7,049.66 = 3,012.99 : x
  2. Step 2: Convert to fraction form
    5,107.47/7,049.66 = 3,012.99/x
  3. Step 3: Cross multiply
    5,107.47x = 7,049.66 × 3,012.99
  4. Step 4: Simplify right side
    5,107.47x = 21,240,540.02
  5. Step 5: Solve for x
    x = 21,240,540.02/5,107.47
  6. Step 6: Final answer
    x = 4,158.72

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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.