Home / 6,909.40-10,357.39-2,961.69

Finding the Fourth Proportional to 6,909.40, 10,357.39 and 2,961.69

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Solution

The fourth proportional to 6,909.40, 10,357.39 and 2,961.69 is: 4,439.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.40 : 10,357.39 = 2,961.69 : x
  2. Step 2: Convert to fraction form
    6,909.40/10,357.39 = 2,961.69/x
  3. Step 3: Cross multiply
    6,909.40x = 10,357.39 × 2,961.69
  4. Step 4: Simplify right side
    6,909.40x = 30,675,343.25
  5. Step 5: Solve for x
    x = 30,675,343.25/6,909.40
  6. Step 6: Final answer
    x = 4,439.65

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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.