Home / 5,103.20-7,042.35-2,865.02

Finding the Fourth Proportional to 5,103.20, 7,042.35 and 2,865.02

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Solution

The fourth proportional to 5,103.20, 7,042.35 and 2,865.02 is: 3,953.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.20 : 7,042.35 = 2,865.02 : x
  2. Step 2: Convert to fraction form
    5,103.20/7,042.35 = 2,865.02/x
  3. Step 3: Cross multiply
    5,103.20x = 7,042.35 × 2,865.02
  4. Step 4: Simplify right side
    5,103.20x = 20,176,488.74
  5. Step 5: Solve for x
    x = 20,176,488.74/5,103.20
  6. Step 6: Final answer
    x = 3,953.69

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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.