Home / 3,157.72-4,357.22-1,760.20

Finding the Fourth Proportional to 3,157.72, 4,357.22 and 1,760.20

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Solution

The fourth proportional to 3,157.72, 4,357.22 and 1,760.20 is: 2,428.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.72 : 4,357.22 = 1,760.20 : x
  2. Step 2: Convert to fraction form
    3,157.72/4,357.22 = 1,760.20/x
  3. Step 3: Cross multiply
    3,157.72x = 4,357.22 × 1,760.20
  4. Step 4: Simplify right side
    3,157.72x = 7,669,578.64
  5. Step 5: Solve for x
    x = 7,669,578.64/3,157.72
  6. Step 6: Final answer
    x = 2,428.83

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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.