Home / 2,219.85-3,324.08-2,154.15

Finding the Fourth Proportional to 2,219.85, 3,324.08 and 2,154.15

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Solution

The fourth proportional to 2,219.85, 3,324.08 and 2,154.15 is: 3,225.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.85 : 3,324.08 = 2,154.15 : x
  2. Step 2: Convert to fraction form
    2,219.85/3,324.08 = 2,154.15/x
  3. Step 3: Cross multiply
    2,219.85x = 3,324.08 × 2,154.15
  4. Step 4: Simplify right side
    2,219.85x = 7,160,556.16
  5. Step 5: Solve for x
    x = 7,160,556.16/2,219.85
  6. Step 6: Final answer
    x = 3,225.69

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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.