Home / 3,538.96-4,878.14-2,791.70

Finding the Fourth Proportional to 3,538.96, 4,878.14 and 2,791.70

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Solution

The fourth proportional to 3,538.96, 4,878.14 and 2,791.70 is: 3,848.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.96 : 4,878.14 = 2,791.70 : x
  2. Step 2: Convert to fraction form
    3,538.96/4,878.14 = 2,791.70/x
  3. Step 3: Cross multiply
    3,538.96x = 4,878.14 × 2,791.70
  4. Step 4: Simplify right side
    3,538.96x = 13,618,303.44
  5. Step 5: Solve for x
    x = 13,618,303.44/3,538.96
  6. Step 6: Final answer
    x = 3,848.11

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1.5x scale

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.