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Finding the Fourth Proportional to 2,051.77, 3,077.28 and 881.98

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Solution

The fourth proportional to 2,051.77, 3,077.28 and 881.98 is: 1,322.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.77 : 3,077.28 = 881.98 : x
  2. Step 2: Convert to fraction form
    2,051.77/3,077.28 = 881.98/x
  3. Step 3: Cross multiply
    2,051.77x = 3,077.28 × 881.98
  4. Step 4: Simplify right side
    2,051.77x = 2,714,099.41
  5. Step 5: Solve for x
    x = 2,714,099.41/2,051.77
  6. Step 6: Final answer
    x = 1,322.81

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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.