Home / 3,458.18-5,192.45-1,979.07

Finding the Fourth Proportional to 3,458.18, 5,192.45 and 1,979.07

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Solution

The fourth proportional to 3,458.18, 5,192.45 and 1,979.07 is: 2,971.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.18 : 5,192.45 = 1,979.07 : x
  2. Step 2: Convert to fraction form
    3,458.18/5,192.45 = 1,979.07/x
  3. Step 3: Cross multiply
    3,458.18x = 5,192.45 × 1,979.07
  4. Step 4: Simplify right side
    3,458.18x = 10,276,212.13
  5. Step 5: Solve for x
    x = 10,276,212.13/3,458.18
  6. Step 6: Final answer
    x = 2,971.56

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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.