Home / 5,194.89-7,788-2,420.13

Finding the Fourth Proportional to 5,194.89, 7,788 and 2,420.13

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Solution

The fourth proportional to 5,194.89, 7,788 and 2,420.13 is: 3,628.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,194.89 : 7,788 = 2,420.13 : x
  2. Step 2: Convert to fraction form
    5,194.89/7,788 = 2,420.13/x
  3. Step 3: Cross multiply
    5,194.89x = 7,788 × 2,420.13
  4. Step 4: Simplify right side
    5,194.89x = 18,847,972.44
  5. Step 5: Solve for x
    x = 18,847,972.44/5,194.89
  6. Step 6: Final answer
    x = 3,628.18

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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.