Home / 7,319.87-10,979.81-3,427.01

Finding the Fourth Proportional to 7,319.87, 10,979.81 and 3,427.01

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Solution

The fourth proportional to 7,319.87, 10,979.81 and 3,427.01 is: 5,140.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.87 : 10,979.81 = 3,427.01 : x
  2. Step 2: Convert to fraction form
    7,319.87/10,979.81 = 3,427.01/x
  3. Step 3: Cross multiply
    7,319.87x = 10,979.81 × 3,427.01
  4. Step 4: Simplify right side
    7,319.87x = 37,627,918.67
  5. Step 5: Solve for x
    x = 37,627,918.67/7,319.87
  6. Step 6: Final answer
    x = 5,140.52

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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.