Home / 4,089.20-5,643.08-2,226.20

Finding the Fourth Proportional to 4,089.20, 5,643.08 and 2,226.20

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Solution

The fourth proportional to 4,089.20, 5,643.08 and 2,226.20 is: 3,072.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.20 : 5,643.08 = 2,226.20 : x
  2. Step 2: Convert to fraction form
    4,089.20/5,643.08 = 2,226.20/x
  3. Step 3: Cross multiply
    4,089.20x = 5,643.08 × 2,226.20
  4. Step 4: Simplify right side
    4,089.20x = 12,562,585.35
  5. Step 5: Solve for x
    x = 12,562,585.35/4,089.20
  6. Step 6: Final answer
    x = 3,072.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.