Home / 7,865.39-11,799.91-2,600.08

Finding the Fourth Proportional to 7,865.39, 11,799.91 and 2,600.08

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Solution

The fourth proportional to 7,865.39, 11,799.91 and 2,600.08 is: 3,900.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.39 : 11,799.91 = 2,600.08 : x
  2. Step 2: Convert to fraction form
    7,865.39/11,799.91 = 2,600.08/x
  3. Step 3: Cross multiply
    7,865.39x = 11,799.91 × 2,600.08
  4. Step 4: Simplify right side
    7,865.39x = 30,680,685.49
  5. Step 5: Solve for x
    x = 30,680,685.49/7,865.39
  6. Step 6: Final answer
    x = 3,900.72

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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.