Home / 5,103.96-7,043.76-2,866.20

Finding the Fourth Proportional to 5,103.96, 7,043.76 and 2,866.20

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Solution

The fourth proportional to 5,103.96, 7,043.76 and 2,866.20 is: 3,955.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.96 : 7,043.76 = 2,866.20 : x
  2. Step 2: Convert to fraction form
    5,103.96/7,043.76 = 2,866.20/x
  3. Step 3: Cross multiply
    5,103.96x = 7,043.76 × 2,866.20
  4. Step 4: Simplify right side
    5,103.96x = 20,188,824.91
  5. Step 5: Solve for x
    x = 20,188,824.91/5,103.96
  6. Step 6: Final answer
    x = 3,955.52

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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.