Home / 7,080.81-10,618.56-2,081.67

Finding the Fourth Proportional to 7,080.81, 10,618.56 and 2,081.67

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Solution

The fourth proportional to 7,080.81, 10,618.56 and 2,081.67 is: 3,121.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.81 : 10,618.56 = 2,081.67 : x
  2. Step 2: Convert to fraction form
    7,080.81/10,618.56 = 2,081.67/x
  3. Step 3: Cross multiply
    7,080.81x = 10,618.56 × 2,081.67
  4. Step 4: Simplify right side
    7,080.81x = 22,104,337.80
  5. Step 5: Solve for x
    x = 22,104,337.80/7,080.81
  6. Step 6: Final answer
    x = 3,121.72

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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.