Home / 6,972.05-9,621.43-3,785.34

Finding the Fourth Proportional to 6,972.05, 9,621.43 and 3,785.34

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Solution

The fourth proportional to 6,972.05, 9,621.43 and 3,785.34 is: 5,223.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.05 : 9,621.43 = 3,785.34 : x
  2. Step 2: Convert to fraction form
    6,972.05/9,621.43 = 3,785.34/x
  3. Step 3: Cross multiply
    6,972.05x = 9,621.43 × 3,785.34
  4. Step 4: Simplify right side
    6,972.05x = 36,420,383.84
  5. Step 5: Solve for x
    x = 36,420,383.84/6,972.05
  6. Step 6: Final answer
    x = 5,223.77

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1.5x scale

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.