Home / 5,316.35-7,976.23-1,619.29

Finding the Fourth Proportional to 5,316.35, 7,976.23 and 1,619.29

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Solution

The fourth proportional to 5,316.35, 7,976.23 and 1,619.29 is: 2,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.35 : 7,976.23 = 1,619.29 : x
  2. Step 2: Convert to fraction form
    5,316.35/7,976.23 = 1,619.29/x
  3. Step 3: Cross multiply
    5,316.35x = 7,976.23 × 1,619.29
  4. Step 4: Simplify right side
    5,316.35x = 12,915,789.60
  5. Step 5: Solve for x
    x = 12,915,789.60/5,316.35
  6. Step 6: Final answer
    x = 2,429.45

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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.