Home / 2,740.78-4,108.47-1,181.14

Finding the Fourth Proportional to 2,740.78, 4,108.47 and 1,181.14

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Solution

The fourth proportional to 2,740.78, 4,108.47 and 1,181.14 is: 1,770.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.78 : 4,108.47 = 1,181.14 : x
  2. Step 2: Convert to fraction form
    2,740.78/4,108.47 = 1,181.14/x
  3. Step 3: Cross multiply
    2,740.78x = 4,108.47 × 1,181.14
  4. Step 4: Simplify right side
    2,740.78x = 4,852,678.26
  5. Step 5: Solve for x
    x = 4,852,678.26/2,740.78
  6. Step 6: Final answer
    x = 1,770.55

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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.