Home / 7,320.37-10,980.56-3,427.51

Finding the Fourth Proportional to 7,320.37, 10,980.56 and 3,427.51

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Solution

The fourth proportional to 7,320.37, 10,980.56 and 3,427.51 is: 5,141.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.37 : 10,980.56 = 3,427.51 : x
  2. Step 2: Convert to fraction form
    7,320.37/10,980.56 = 3,427.51/x
  3. Step 3: Cross multiply
    7,320.37x = 10,980.56 × 3,427.51
  4. Step 4: Simplify right side
    7,320.37x = 37,635,979.21
  5. Step 5: Solve for x
    x = 37,635,979.21/7,320.37
  6. Step 6: Final answer
    x = 5,141.27

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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.