Home / 5,192.78-7,165.40-3,202.88

Finding the Fourth Proportional to 5,192.78, 7,165.40 and 3,202.88

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Solution

The fourth proportional to 5,192.78, 7,165.40 and 3,202.88 is: 4,419.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,192.78 : 7,165.40 = 3,202.88 : x
  2. Step 2: Convert to fraction form
    5,192.78/7,165.40 = 3,202.88/x
  3. Step 3: Cross multiply
    5,192.78x = 7,165.40 × 3,202.88
  4. Step 4: Simplify right side
    5,192.78x = 22,949,864.51
  5. Step 5: Solve for x
    x = 22,949,864.51/5,192.78
  6. Step 6: Final answer
    x = 4,419.58

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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.