Home / 5,172.75-7,760.66-2,983.05

Finding the Fourth Proportional to 5,172.75, 7,760.66 and 2,983.05

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Solution

The fourth proportional to 5,172.75, 7,760.66 and 2,983.05 is: 4,475.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.75 : 7,760.66 = 2,983.05 : x
  2. Step 2: Convert to fraction form
    5,172.75/7,760.66 = 2,983.05/x
  3. Step 3: Cross multiply
    5,172.75x = 7,760.66 × 2,983.05
  4. Step 4: Simplify right side
    5,172.75x = 23,150,421.90
  5. Step 5: Solve for x
    x = 23,150,421.90/5,172.75
  6. Step 6: Final answer
    x = 4,475.46

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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.