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Finding the Fourth Proportional to 2,657.66, 3,984.47 and 1,617.47

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Solution

The fourth proportional to 2,657.66, 3,984.47 and 1,617.47 is: 2,424.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.66 : 3,984.47 = 1,617.47 : x
  2. Step 2: Convert to fraction form
    2,657.66/3,984.47 = 1,617.47/x
  3. Step 3: Cross multiply
    2,657.66x = 3,984.47 × 1,617.47
  4. Step 4: Simplify right side
    2,657.66x = 6,444,749.14
  5. Step 5: Solve for x
    x = 6,444,749.14/2,657.66
  6. Step 6: Final answer
    x = 2,424.97

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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.