Home / 7,329.78-10,976.85-3,435.30

Finding the Fourth Proportional to 7,329.78, 10,976.85 and 3,435.30

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Solution

The fourth proportional to 7,329.78, 10,976.85 and 3,435.30 is: 5,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.78 : 10,976.85 = 3,435.30 : x
  2. Step 2: Convert to fraction form
    7,329.78/10,976.85 = 3,435.30/x
  3. Step 3: Cross multiply
    7,329.78x = 10,976.85 × 3,435.30
  4. Step 4: Simplify right side
    7,329.78x = 37,708,772.81
  5. Step 5: Solve for x
    x = 37,708,772.81/7,329.78
  6. Step 6: Final answer
    x = 5,144.60

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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.