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Finding the Fourth Proportional to 4,151.88, 6,229.08 and 1,555.20

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Solution

The fourth proportional to 4,151.88, 6,229.08 and 1,555.20 is: 2,333.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,151.88 : 6,229.08 = 1,555.20 : x
  2. Step 2: Convert to fraction form
    4,151.88/6,229.08 = 1,555.20/x
  3. Step 3: Cross multiply
    4,151.88x = 6,229.08 × 1,555.20
  4. Step 4: Simplify right side
    4,151.88x = 9,687,465.22
  5. Step 5: Solve for x
    x = 9,687,465.22/4,151.88
  6. Step 6: Final answer
    x = 2,333.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.