Home / 6,760.20-10,139.28-1,830.12

Finding the Fourth Proportional to 6,760.20, 10,139.28 and 1,830.12

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Solution

The fourth proportional to 6,760.20, 10,139.28 and 1,830.12 is: 2,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,760.20 : 10,139.28 = 1,830.12 : x
  2. Step 2: Convert to fraction form
    6,760.20/10,139.28 = 1,830.12/x
  3. Step 3: Cross multiply
    6,760.20x = 10,139.28 × 1,830.12
  4. Step 4: Simplify right side
    6,760.20x = 18,556,099.11
  5. Step 5: Solve for x
    x = 18,556,099.11/6,760.20
  6. Step 6: Final answer
    x = 2,744.90

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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.