Home / 7,011.33-10,515.18-2,079.81

Finding the Fourth Proportional to 7,011.33, 10,515.18 and 2,079.81

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Solution

The fourth proportional to 7,011.33, 10,515.18 and 2,079.81 is: 3,119.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.33 : 10,515.18 = 2,079.81 : x
  2. Step 2: Convert to fraction form
    7,011.33/10,515.18 = 2,079.81/x
  3. Step 3: Cross multiply
    7,011.33x = 10,515.18 × 2,079.81
  4. Step 4: Simplify right side
    7,011.33x = 21,869,576.52
  5. Step 5: Solve for x
    x = 21,869,576.52/7,011.33
  6. Step 6: Final answer
    x = 3,119.18

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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.