Home / 6,779.40-10,171.68-3,490.39

Finding the Fourth Proportional to 6,779.40, 10,171.68 and 3,490.39

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Solution

The fourth proportional to 6,779.40, 10,171.68 and 3,490.39 is: 5,236.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,779.40 : 10,171.68 = 3,490.39 : x
  2. Step 2: Convert to fraction form
    6,779.40/10,171.68 = 3,490.39/x
  3. Step 3: Cross multiply
    6,779.40x = 10,171.68 × 3,490.39
  4. Step 4: Simplify right side
    6,779.40x = 35,503,129.78
  5. Step 5: Solve for x
    x = 35,503,129.78/6,779.40
  6. Step 6: Final answer
    x = 5,236.92

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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.