Home / 5,600.78-8,398.31-2,090.64

Finding the Fourth Proportional to 5,600.78, 8,398.31 and 2,090.64

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Solution

The fourth proportional to 5,600.78, 8,398.31 and 2,090.64 is: 3,134.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,600.78 : 8,398.31 = 2,090.64 : x
  2. Step 2: Convert to fraction form
    5,600.78/8,398.31 = 2,090.64/x
  3. Step 3: Cross multiply
    5,600.78x = 8,398.31 × 2,090.64
  4. Step 4: Simplify right side
    5,600.78x = 17,557,832.37
  5. Step 5: Solve for x
    x = 17,557,832.37/5,600.78
  6. Step 6: Final answer
    x = 3,134.89

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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.