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Finding the Fourth Proportional to 2,608.76, 3,600.48 and 1,489.88

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Solution

The fourth proportional to 2,608.76, 3,600.48 and 1,489.88 is: 2,056.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,608.76 : 3,600.48 = 1,489.88 : x
  2. Step 2: Convert to fraction form
    2,608.76/3,600.48 = 1,489.88/x
  3. Step 3: Cross multiply
    2,608.76x = 3,600.48 × 1,489.88
  4. Step 4: Simplify right side
    2,608.76x = 5,364,283.14
  5. Step 5: Solve for x
    x = 5,364,283.14/2,608.76
  6. Step 6: Final answer
    x = 2,056.26

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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.