Home / 2,731.22-4,097.10-1,087.40

Finding the Fourth Proportional to 2,731.22, 4,097.10 and 1,087.40

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Solution

The fourth proportional to 2,731.22, 4,097.10 and 1,087.40 is: 1,631.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.22 : 4,097.10 = 1,087.40 : x
  2. Step 2: Convert to fraction form
    2,731.22/4,097.10 = 1,087.40/x
  3. Step 3: Cross multiply
    2,731.22x = 4,097.10 × 1,087.40
  4. Step 4: Simplify right side
    2,731.22x = 4,455,186.54
  5. Step 5: Solve for x
    x = 4,455,186.54/2,731.22
  6. Step 6: Final answer
    x = 1,631.21

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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.