Home / 7,319.37-10,979.07-3,426.51

Finding the Fourth Proportional to 7,319.37, 10,979.07 and 3,426.51

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Solution

The fourth proportional to 7,319.37, 10,979.07 and 3,426.51 is: 5,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.37 : 10,979.07 = 3,426.51 : x
  2. Step 2: Convert to fraction form
    7,319.37/10,979.07 = 3,426.51/x
  3. Step 3: Cross multiply
    7,319.37x = 10,979.07 × 3,426.51
  4. Step 4: Simplify right side
    7,319.37x = 37,619,893.15
  5. Step 5: Solve for x
    x = 37,619,893.15/7,319.37
  6. Step 6: Final answer
    x = 5,139.77

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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.