Home / 5,319.78-7,979.37-2,357.37

Finding the Fourth Proportional to 5,319.78, 7,979.37 and 2,357.37

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Solution

The fourth proportional to 5,319.78, 7,979.37 and 2,357.37 is: 3,535.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.78 : 7,979.37 = 2,357.37 : x
  2. Step 2: Convert to fraction form
    5,319.78/7,979.37 = 2,357.37/x
  3. Step 3: Cross multiply
    5,319.78x = 7,979.37 × 2,357.37
  4. Step 4: Simplify right side
    5,319.78x = 18,810,327.46
  5. Step 5: Solve for x
    x = 18,810,327.46/5,319.78
  6. Step 6: Final answer
    x = 3,535.92

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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.