Home / 5,117.62-7,062.24-2,879.50

Finding the Fourth Proportional to 5,117.62, 7,062.24 and 2,879.50

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Solution

The fourth proportional to 5,117.62, 7,062.24 and 2,879.50 is: 3,973.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.62 : 7,062.24 = 2,879.50 : x
  2. Step 2: Convert to fraction form
    5,117.62/7,062.24 = 2,879.50/x
  3. Step 3: Cross multiply
    5,117.62x = 7,062.24 × 2,879.50
  4. Step 4: Simplify right side
    5,117.62x = 20,335,698.50
  5. Step 5: Solve for x
    x = 20,335,698.50/5,117.62
  6. Step 6: Final answer
    x = 3,973.66

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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.