Home / 5,319.71-7,979.72-2,979.32

Finding the Fourth Proportional to 5,319.71, 7,979.72 and 2,979.32

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Solution

The fourth proportional to 5,319.71, 7,979.72 and 2,979.32 is: 4,469.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.71 : 7,979.72 = 2,979.32 : x
  2. Step 2: Convert to fraction form
    5,319.71/7,979.72 = 2,979.32/x
  3. Step 3: Cross multiply
    5,319.71x = 7,979.72 × 2,979.32
  4. Step 4: Simplify right side
    5,319.71x = 23,774,084.60
  5. Step 5: Solve for x
    x = 23,774,084.60/5,319.71
  6. Step 6: Final answer
    x = 4,469.06

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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.