Home / 4,689.11-7,028.30-2,220.44

Finding the Fourth Proportional to 4,689.11, 7,028.30 and 2,220.44

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Solution

The fourth proportional to 4,689.11, 7,028.30 and 2,220.44 is: 3,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.11 : 7,028.30 = 2,220.44 : x
  2. Step 2: Convert to fraction form
    4,689.11/7,028.30 = 2,220.44/x
  3. Step 3: Cross multiply
    4,689.11x = 7,028.30 × 2,220.44
  4. Step 4: Simplify right side
    4,689.11x = 15,605,888.86
  5. Step 5: Solve for x
    x = 15,605,888.86/4,689.11
  6. Step 6: Final answer
    x = 3,328.11

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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.