Home / 7,809.12-11,714.85-2,542.41

Finding the Fourth Proportional to 7,809.12, 11,714.85 and 2,542.41

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Solution

The fourth proportional to 7,809.12, 11,714.85 and 2,542.41 is: 3,814.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.12 : 11,714.85 = 2,542.41 : x
  2. Step 2: Convert to fraction form
    7,809.12/11,714.85 = 2,542.41/x
  3. Step 3: Cross multiply
    7,809.12x = 11,714.85 × 2,542.41
  4. Step 4: Simplify right side
    7,809.12x = 29,783,951.79
  5. Step 5: Solve for x
    x = 29,783,951.79/7,809.12
  6. Step 6: Final answer
    x = 3,814.00

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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.