Home / 7,639.17-11,464.62-3,423.72

Finding the Fourth Proportional to 7,639.17, 11,464.62 and 3,423.72

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Solution

The fourth proportional to 7,639.17, 11,464.62 and 3,423.72 is: 5,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.17 : 11,464.62 = 3,423.72 : x
  2. Step 2: Convert to fraction form
    7,639.17/11,464.62 = 3,423.72/x
  3. Step 3: Cross multiply
    7,639.17x = 11,464.62 × 3,423.72
  4. Step 4: Simplify right side
    7,639.17x = 39,251,648.79
  5. Step 5: Solve for x
    x = 39,251,648.79/7,639.17
  6. Step 6: Final answer
    x = 5,138.21

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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.