Home / 7,098.29-10,639.79-3,392.64

Finding the Fourth Proportional to 7,098.29, 10,639.79 and 3,392.64

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Solution

The fourth proportional to 7,098.29, 10,639.79 and 3,392.64 is: 5,085.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.29 : 10,639.79 = 3,392.64 : x
  2. Step 2: Convert to fraction form
    7,098.29/10,639.79 = 3,392.64/x
  3. Step 3: Cross multiply
    7,098.29x = 10,639.79 × 3,392.64
  4. Step 4: Simplify right side
    7,098.29x = 36,096,972.90
  5. Step 5: Solve for x
    x = 36,096,972.90/7,098.29
  6. Step 6: Final answer
    x = 5,085.31

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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.