Home / 2,270.22-3,131.02-1,916.96

Finding the Fourth Proportional to 2,270.22, 3,131.02 and 1,916.96

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Solution

The fourth proportional to 2,270.22, 3,131.02 and 1,916.96 is: 2,643.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.22 : 3,131.02 = 1,916.96 : x
  2. Step 2: Convert to fraction form
    2,270.22/3,131.02 = 1,916.96/x
  3. Step 3: Cross multiply
    2,270.22x = 3,131.02 × 1,916.96
  4. Step 4: Simplify right side
    2,270.22x = 6,002,014.86
  5. Step 5: Solve for x
    x = 6,002,014.86/2,270.22
  6. Step 6: Final answer
    x = 2,643.81

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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.