Home / 2,219.55-3,329.33-1,245.63

Finding the Fourth Proportional to 2,219.55, 3,329.33 and 1,245.63

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Solution

The fourth proportional to 2,219.55, 3,329.33 and 1,245.63 is: 1,868.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.55 : 3,329.33 = 1,245.63 : x
  2. Step 2: Convert to fraction form
    2,219.55/3,329.33 = 1,245.63/x
  3. Step 3: Cross multiply
    2,219.55x = 3,329.33 × 1,245.63
  4. Step 4: Simplify right side
    2,219.55x = 4,147,107.10
  5. Step 5: Solve for x
    x = 4,147,107.10/2,219.55
  6. Step 6: Final answer
    x = 1,868.45

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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.