Home / 5,182.18-7,151.38-3,057.72

Finding the Fourth Proportional to 5,182.18, 7,151.38 and 3,057.72

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Solution

The fourth proportional to 5,182.18, 7,151.38 and 3,057.72 is: 4,219.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,182.18 : 7,151.38 = 3,057.72 : x
  2. Step 2: Convert to fraction form
    5,182.18/7,151.38 = 3,057.72/x
  3. Step 3: Cross multiply
    5,182.18x = 7,151.38 × 3,057.72
  4. Step 4: Simplify right side
    5,182.18x = 21,866,917.65
  5. Step 5: Solve for x
    x = 21,866,917.65/5,182.18
  6. Step 6: Final answer
    x = 4,219.64

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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.