Home / 5,385.86-8,076.65-2,098.48

Finding the Fourth Proportional to 5,385.86, 8,076.65 and 2,098.48

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Solution

The fourth proportional to 5,385.86, 8,076.65 and 2,098.48 is: 3,146.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.86 : 8,076.65 = 2,098.48 : x
  2. Step 2: Convert to fraction form
    5,385.86/8,076.65 = 2,098.48/x
  3. Step 3: Cross multiply
    5,385.86x = 8,076.65 × 2,098.48
  4. Step 4: Simplify right side
    5,385.86x = 16,948,688.49
  5. Step 5: Solve for x
    x = 16,948,688.49/5,385.86
  6. Step 6: Final answer
    x = 3,146.89

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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.