Home / 4,086.28-5,639.04-2,223.28

Finding the Fourth Proportional to 4,086.28, 5,639.04 and 2,223.28

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Solution

The fourth proportional to 4,086.28, 5,639.04 and 2,223.28 is: 3,068.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.28 : 5,639.04 = 2,223.28 : x
  2. Step 2: Convert to fraction form
    4,086.28/5,639.04 = 2,223.28/x
  3. Step 3: Cross multiply
    4,086.28x = 5,639.04 × 2,223.28
  4. Step 4: Simplify right side
    4,086.28x = 12,537,164.85
  5. Step 5: Solve for x
    x = 12,537,164.85/4,086.28
  6. Step 6: Final answer
    x = 3,068.11

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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.