Home / 5,249.83-7,875.02-2,129.37

Finding the Fourth Proportional to 5,249.83, 7,875.02 and 2,129.37

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Solution

The fourth proportional to 5,249.83, 7,875.02 and 2,129.37 is: 3,194.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.83 : 7,875.02 = 2,129.37 : x
  2. Step 2: Convert to fraction form
    5,249.83/7,875.02 = 2,129.37/x
  3. Step 3: Cross multiply
    5,249.83x = 7,875.02 × 2,129.37
  4. Step 4: Simplify right side
    5,249.83x = 16,768,791.96
  5. Step 5: Solve for x
    x = 16,768,791.96/5,249.83
  6. Step 6: Final answer
    x = 3,194.16

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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.