Home / 2,879.62-4,316.94-1,147.12

Finding the Fourth Proportional to 2,879.62, 4,316.94 and 1,147.12

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Solution

The fourth proportional to 2,879.62, 4,316.94 and 1,147.12 is: 1,719.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.62 : 4,316.94 = 1,147.12 : x
  2. Step 2: Convert to fraction form
    2,879.62/4,316.94 = 1,147.12/x
  3. Step 3: Cross multiply
    2,879.62x = 4,316.94 × 1,147.12
  4. Step 4: Simplify right side
    2,879.62x = 4,952,048.21
  5. Step 5: Solve for x
    x = 4,952,048.21/2,879.62
  6. Step 6: Final answer
    x = 1,719.69

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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.