Home / 6,391.68-9,587.60-2,231.70

Finding the Fourth Proportional to 6,391.68, 9,587.60 and 2,231.70

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Solution

The fourth proportional to 6,391.68, 9,587.60 and 2,231.70 is: 3,347.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391.68 : 9,587.60 = 2,231.70 : x
  2. Step 2: Convert to fraction form
    6,391.68/9,587.60 = 2,231.70/x
  3. Step 3: Cross multiply
    6,391.68x = 9,587.60 × 2,231.70
  4. Step 4: Simplify right side
    6,391.68x = 21,396,646.92
  5. Step 5: Solve for x
    x = 21,396,646.92/6,391.68
  6. Step 6: Final answer
    x = 3,347.58

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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.