Home / 5,103.24-7,042.45-2,980.23

Finding the Fourth Proportional to 5,103.24, 7,042.45 and 2,980.23

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Solution

The fourth proportional to 5,103.24, 7,042.45 and 2,980.23 is: 4,112.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.24 : 7,042.45 = 2,980.23 : x
  2. Step 2: Convert to fraction form
    5,103.24/7,042.45 = 2,980.23/x
  3. Step 3: Cross multiply
    5,103.24x = 7,042.45 × 2,980.23
  4. Step 4: Simplify right side
    5,103.24x = 20,988,120.76
  5. Step 5: Solve for x
    x = 20,988,120.76/5,103.24
  6. Step 6: Final answer
    x = 4,112.71

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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.