Home / 5,911.34-8,872.50-2,991.72

Finding the Fourth Proportional to 5,911.34, 8,872.50 and 2,991.72

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Solution

The fourth proportional to 5,911.34, 8,872.50 and 2,991.72 is: 4,490.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911.34 : 8,872.50 = 2,991.72 : x
  2. Step 2: Convert to fraction form
    5,911.34/8,872.50 = 2,991.72/x
  3. Step 3: Cross multiply
    5,911.34x = 8,872.50 × 2,991.72
  4. Step 4: Simplify right side
    5,911.34x = 26,544,035.70
  5. Step 5: Solve for x
    x = 26,544,035.70/5,911.34
  6. Step 6: Final answer
    x = 4,490.36

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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.