Home / 7,178.07-10,757.07-3,479.32

Finding the Fourth Proportional to 7,178.07, 10,757.07 and 3,479.32

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Solution

The fourth proportional to 7,178.07, 10,757.07 and 3,479.32 is: 5,214.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.07 : 10,757.07 = 3,479.32 : x
  2. Step 2: Convert to fraction form
    7,178.07/10,757.07 = 3,479.32/x
  3. Step 3: Cross multiply
    7,178.07x = 10,757.07 × 3,479.32
  4. Step 4: Simplify right side
    7,178.07x = 37,427,288.79
  5. Step 5: Solve for x
    x = 37,427,288.79/7,178.07
  6. Step 6: Final answer
    x = 5,214.12

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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.