Home / 7,186.14-10,778.29-2,806.67

Finding the Fourth Proportional to 7,186.14, 10,778.29 and 2,806.67

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Solution

The fourth proportional to 7,186.14, 10,778.29 and 2,806.67 is: 4,209.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,186.14 : 10,778.29 = 2,806.67 : x
  2. Step 2: Convert to fraction form
    7,186.14/10,778.29 = 2,806.67/x
  3. Step 3: Cross multiply
    7,186.14x = 10,778.29 × 2,806.67
  4. Step 4: Simplify right side
    7,186.14x = 30,251,123.12
  5. Step 5: Solve for x
    x = 30,251,123.12/7,186.14
  6. Step 6: Final answer
    x = 4,209.65

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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.