Home / 7,211.38-10,815.62-2,017.30

Finding the Fourth Proportional to 7,211.38, 10,815.62 and 2,017.30

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Solution

The fourth proportional to 7,211.38, 10,815.62 and 2,017.30 is: 3,025.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.38 : 10,815.62 = 2,017.30 : x
  2. Step 2: Convert to fraction form
    7,211.38/10,815.62 = 2,017.30/x
  3. Step 3: Cross multiply
    7,211.38x = 10,815.62 × 2,017.30
  4. Step 4: Simplify right side
    7,211.38x = 21,818,350.23
  5. Step 5: Solve for x
    x = 21,818,350.23/7,211.38
  6. Step 6: Final answer
    x = 3,025.54

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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.