Home / 7,811.34-11,714.19-2,616.02

Finding the Fourth Proportional to 7,811.34, 11,714.19 and 2,616.02

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Solution

The fourth proportional to 7,811.34, 11,714.19 and 2,616.02 is: 3,923.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.34 : 11,714.19 = 2,616.02 : x
  2. Step 2: Convert to fraction form
    7,811.34/11,714.19 = 2,616.02/x
  3. Step 3: Cross multiply
    7,811.34x = 11,714.19 × 2,616.02
  4. Step 4: Simplify right side
    7,811.34x = 30,644,555.32
  5. Step 5: Solve for x
    x = 30,644,555.32/7,811.34
  6. Step 6: Final answer
    x = 3,923.09

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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.