Home / 7,211.45-10,815.15-2,282.60

Finding the Fourth Proportional to 7,211.45, 10,815.15 and 2,282.60

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Solution

The fourth proportional to 7,211.45, 10,815.15 and 2,282.60 is: 3,423.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.45 : 10,815.15 = 2,282.60 : x
  2. Step 2: Convert to fraction form
    7,211.45/10,815.15 = 2,282.60/x
  3. Step 3: Cross multiply
    7,211.45x = 10,815.15 × 2,282.60
  4. Step 4: Simplify right side
    7,211.45x = 24,686,661.39
  5. Step 5: Solve for x
    x = 24,686,661.39/7,211.45
  6. Step 6: Final answer
    x = 3,423.26

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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.