Home / 5,705.31-7,873.08-3,187.37

Finding the Fourth Proportional to 5,705.31, 7,873.08 and 3,187.37

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Solution

The fourth proportional to 5,705.31, 7,873.08 and 3,187.37 is: 4,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,705.31 : 7,873.08 = 3,187.37 : x
  2. Step 2: Convert to fraction form
    5,705.31/7,873.08 = 3,187.37/x
  3. Step 3: Cross multiply
    5,705.31x = 7,873.08 × 3,187.37
  4. Step 4: Simplify right side
    5,705.31x = 25,094,379.63
  5. Step 5: Solve for x
    x = 25,094,379.63/5,705.31
  6. Step 6: Final answer
    x = 4,398.43

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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.