Home / 2,755.30-4,120.80-2,317.90

Finding the Fourth Proportional to 2,755.30, 4,120.80 and 2,317.90

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Solution

The fourth proportional to 2,755.30, 4,120.80 and 2,317.90 is: 3,466.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.30 : 4,120.80 = 2,317.90 : x
  2. Step 2: Convert to fraction form
    2,755.30/4,120.80 = 2,317.90/x
  3. Step 3: Cross multiply
    2,755.30x = 4,120.80 × 2,317.90
  4. Step 4: Simplify right side
    2,755.30x = 9,551,602.32
  5. Step 5: Solve for x
    x = 9,551,602.32/2,755.30
  6. Step 6: Final answer
    x = 3,466.63

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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.