Home / 5,011.68-7,510.33-2,815.79

Finding the Fourth Proportional to 5,011.68, 7,510.33 and 2,815.79

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Solution

The fourth proportional to 5,011.68, 7,510.33 and 2,815.79 is: 4,219.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.68 : 7,510.33 = 2,815.79 : x
  2. Step 2: Convert to fraction form
    5,011.68/7,510.33 = 2,815.79/x
  3. Step 3: Cross multiply
    5,011.68x = 7,510.33 × 2,815.79
  4. Step 4: Simplify right side
    5,011.68x = 21,147,523.85
  5. Step 5: Solve for x
    x = 21,147,523.85/5,011.68
  6. Step 6: Final answer
    x = 4,219.65

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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.