Home / 2,971.86-4,099.29-2,266.56

Finding the Fourth Proportional to 2,971.86, 4,099.29 and 2,266.56

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Solution

The fourth proportional to 2,971.86, 4,099.29 and 2,266.56 is: 3,126.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.86 : 4,099.29 = 2,266.56 : x
  2. Step 2: Convert to fraction form
    2,971.86/4,099.29 = 2,266.56/x
  3. Step 3: Cross multiply
    2,971.86x = 4,099.29 × 2,266.56
  4. Step 4: Simplify right side
    2,971.86x = 9,291,286.74
  5. Step 5: Solve for x
    x = 9,291,286.74/2,971.86
  6. Step 6: Final answer
    x = 3,126.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.