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Finding the Fourth Proportional to 2,756.84, 3,804.22 and 1,577.64

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Solution

The fourth proportional to 2,756.84, 3,804.22 and 1,577.64 is: 2,177.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.84 : 3,804.22 = 1,577.64 : x
  2. Step 2: Convert to fraction form
    2,756.84/3,804.22 = 1,577.64/x
  3. Step 3: Cross multiply
    2,756.84x = 3,804.22 × 1,577.64
  4. Step 4: Simplify right side
    2,756.84x = 6,001,689.64
  5. Step 5: Solve for x
    x = 6,001,689.64/2,756.84
  6. Step 6: Final answer
    x = 2,177.02

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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.