Home / 5,810.98-8,720.17-2,112.85

Finding the Fourth Proportional to 5,810.98, 8,720.17 and 2,112.85

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Solution

The fourth proportional to 5,810.98, 8,720.17 and 2,112.85 is: 3,170.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.98 : 8,720.17 = 2,112.85 : x
  2. Step 2: Convert to fraction form
    5,810.98/8,720.17 = 2,112.85/x
  3. Step 3: Cross multiply
    5,810.98x = 8,720.17 × 2,112.85
  4. Step 4: Simplify right side
    5,810.98x = 18,424,411.18
  5. Step 5: Solve for x
    x = 18,424,411.18/5,810.98
  6. Step 6: Final answer
    x = 3,170.62

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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.