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Finding the Fourth Proportional to 3,152.28, 4,350.28 and 1,755

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Solution

The fourth proportional to 3,152.28, 4,350.28 and 1,755 is: 2,421.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.28 : 4,350.28 = 1,755 : x
  2. Step 2: Convert to fraction form
    3,152.28/4,350.28 = 1,755/x
  3. Step 3: Cross multiply
    3,152.28x = 4,350.28 × 1,755
  4. Step 4: Simplify right side
    3,152.28x = 7,634,741.40
  5. Step 5: Solve for x
    x = 7,634,741.40/3,152.28
  6. Step 6: Final answer
    x = 2,421.97

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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.