Home / 5,097.32-7,647.92-1,979.51

Finding the Fourth Proportional to 5,097.32, 7,647.92 and 1,979.51

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Solution

The fourth proportional to 5,097.32, 7,647.92 and 1,979.51 is: 2,970.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,097.32 : 7,647.92 = 1,979.51 : x
  2. Step 2: Convert to fraction form
    5,097.32/7,647.92 = 1,979.51/x
  3. Step 3: Cross multiply
    5,097.32x = 7,647.92 × 1,979.51
  4. Step 4: Simplify right side
    5,097.32x = 15,139,134.12
  5. Step 5: Solve for x
    x = 15,139,134.12/5,097.32
  6. Step 6: Final answer
    x = 2,970.02

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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.