Home / 5,810.49-8,720.37-2,113.78

Finding the Fourth Proportional to 5,810.49, 8,720.37 and 2,113.78

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Solution

The fourth proportional to 5,810.49, 8,720.37 and 2,113.78 is: 3,172.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.49 : 8,720.37 = 2,113.78 : x
  2. Step 2: Convert to fraction form
    5,810.49/8,720.37 = 2,113.78/x
  3. Step 3: Cross multiply
    5,810.49x = 8,720.37 × 2,113.78
  4. Step 4: Simplify right side
    5,810.49x = 18,432,943.70
  5. Step 5: Solve for x
    x = 18,432,943.70/5,810.49
  6. Step 6: Final answer
    x = 3,172.36

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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.