Home / 5,079.78-7,010.37-2,841.70

Finding the Fourth Proportional to 5,079.78, 7,010.37 and 2,841.70

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Solution

The fourth proportional to 5,079.78, 7,010.37 and 2,841.70 is: 3,921.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.78 : 7,010.37 = 2,841.70 : x
  2. Step 2: Convert to fraction form
    5,079.78/7,010.37 = 2,841.70/x
  3. Step 3: Cross multiply
    5,079.78x = 7,010.37 × 2,841.70
  4. Step 4: Simplify right side
    5,079.78x = 19,921,339.27
  5. Step 5: Solve for x
    x = 19,921,339.27/5,079.78
  6. Step 6: Final answer
    x = 3,921.69

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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.