Home / 5,103.60-7,043.24-2,865.36

Finding the Fourth Proportional to 5,103.60, 7,043.24 and 2,865.36

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Solution

The fourth proportional to 5,103.60, 7,043.24 and 2,865.36 is: 3,954.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.60 : 7,043.24 = 2,865.36 : x
  2. Step 2: Convert to fraction form
    5,103.60/7,043.24 = 2,865.36/x
  3. Step 3: Cross multiply
    5,103.60x = 7,043.24 × 2,865.36
  4. Step 4: Simplify right side
    5,103.60x = 20,181,418.17
  5. Step 5: Solve for x
    x = 20,181,418.17/5,103.60
  6. Step 6: Final answer
    x = 3,954.35

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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.