Home / 2,639.18-3,639.66-2,266.04

Finding the Fourth Proportional to 2,639.18, 3,639.66 and 2,266.04

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Solution

The fourth proportional to 2,639.18, 3,639.66 and 2,266.04 is: 3,125.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.18 : 3,639.66 = 2,266.04 : x
  2. Step 2: Convert to fraction form
    2,639.18/3,639.66 = 2,266.04/x
  3. Step 3: Cross multiply
    2,639.18x = 3,639.66 × 2,266.04
  4. Step 4: Simplify right side
    2,639.18x = 8,247,615.15
  5. Step 5: Solve for x
    x = 8,247,615.15/2,639.18
  6. Step 6: Final answer
    x = 3,125.07

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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.