Home / 5,230.40-7,838.48-2,635.12

Finding the Fourth Proportional to 5,230.40, 7,838.48 and 2,635.12

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Solution

The fourth proportional to 5,230.40, 7,838.48 and 2,635.12 is: 3,949.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.40 : 7,838.48 = 2,635.12 : x
  2. Step 2: Convert to fraction form
    5,230.40/7,838.48 = 2,635.12/x
  3. Step 3: Cross multiply
    5,230.40x = 7,838.48 × 2,635.12
  4. Step 4: Simplify right side
    5,230.40x = 20,655,335.42
  5. Step 5: Solve for x
    x = 20,655,335.42/5,230.40
  6. Step 6: Final answer
    x = 3,949.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.