Home / 3,864.60-5,795.37-1,398.69

Finding the Fourth Proportional to 3,864.60, 5,795.37 and 1,398.69

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Solution

The fourth proportional to 3,864.60, 5,795.37 and 1,398.69 is: 2,097.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.60 : 5,795.37 = 1,398.69 : x
  2. Step 2: Convert to fraction form
    3,864.60/5,795.37 = 1,398.69/x
  3. Step 3: Cross multiply
    3,864.60x = 5,795.37 × 1,398.69
  4. Step 4: Simplify right side
    3,864.60x = 8,105,926.07
  5. Step 5: Solve for x
    x = 8,105,926.07/3,864.60
  6. Step 6: Final answer
    x = 2,097.48

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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.