Home / 2,812.11-4,211.61-2,223.16

Finding the Fourth Proportional to 2,812.11, 4,211.61 and 2,223.16

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Solution

The fourth proportional to 2,812.11, 4,211.61 and 2,223.16 is: 3,329.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.11 : 4,211.61 = 2,223.16 : x
  2. Step 2: Convert to fraction form
    2,812.11/4,211.61 = 2,223.16/x
  3. Step 3: Cross multiply
    2,812.11x = 4,211.61 × 2,223.16
  4. Step 4: Simplify right side
    2,812.11x = 9,363,082.89
  5. Step 5: Solve for x
    x = 9,363,082.89/2,812.11
  6. Step 6: Final answer
    x = 3,329.56

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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.