Home / 5,103.35-7,042.08-2,865.47

Finding the Fourth Proportional to 5,103.35, 7,042.08 and 2,865.47

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Solution

The fourth proportional to 5,103.35, 7,042.08 and 2,865.47 is: 3,954.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.35 : 7,042.08 = 2,865.47 : x
  2. Step 2: Convert to fraction form
    5,103.35/7,042.08 = 2,865.47/x
  3. Step 3: Cross multiply
    5,103.35x = 7,042.08 × 2,865.47
  4. Step 4: Simplify right side
    5,103.35x = 20,178,837.05
  5. Step 5: Solve for x
    x = 20,178,837.05/5,103.35
  6. Step 6: Final answer
    x = 3,954.04

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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.