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Finding the Fourth Proportional to 3,152.72, 4,350.32 and 1,755.20

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Solution

The fourth proportional to 3,152.72, 4,350.32 and 1,755.20 is: 2,421.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.72 : 4,350.32 = 1,755.20 : x
  2. Step 2: Convert to fraction form
    3,152.72/4,350.32 = 1,755.20/x
  3. Step 3: Cross multiply
    3,152.72x = 4,350.32 × 1,755.20
  4. Step 4: Simplify right side
    3,152.72x = 7,635,681.66
  5. Step 5: Solve for x
    x = 7,635,681.66/3,152.72
  6. Step 6: Final answer
    x = 2,421.93

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