Home / 6,972.30-9,621.42-3,785.52

Finding the Fourth Proportional to 6,972.30, 9,621.42 and 3,785.52

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Solution

The fourth proportional to 6,972.30, 9,621.42 and 3,785.52 is: 5,223.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.30 : 9,621.42 = 3,785.52 : x
  2. Step 2: Convert to fraction form
    6,972.30/9,621.42 = 3,785.52/x
  3. Step 3: Cross multiply
    6,972.30x = 9,621.42 × 3,785.52
  4. Step 4: Simplify right side
    6,972.30x = 36,422,077.84
  5. Step 5: Solve for x
    x = 36,422,077.84/6,972.30
  6. Step 6: Final answer
    x = 5,223.83

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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.