Home / 5,135.96-7,699.14-2,792.49

Finding the Fourth Proportional to 5,135.96, 7,699.14 and 2,792.49

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Solution

The fourth proportional to 5,135.96, 7,699.14 and 2,792.49 is: 4,186.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.96 : 7,699.14 = 2,792.49 : x
  2. Step 2: Convert to fraction form
    5,135.96/7,699.14 = 2,792.49/x
  3. Step 3: Cross multiply
    5,135.96x = 7,699.14 × 2,792.49
  4. Step 4: Simplify right side
    5,135.96x = 21,499,771.46
  5. Step 5: Solve for x
    x = 21,499,771.46/5,135.96
  6. Step 6: Final answer
    x = 4,186.13

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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.