Home / 5,138.82-7,091.57-2,901.17

Finding the Fourth Proportional to 5,138.82, 7,091.57 and 2,901.17

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Solution

The fourth proportional to 5,138.82, 7,091.57 and 2,901.17 is: 4,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.82 : 7,091.57 = 2,901.17 : x
  2. Step 2: Convert to fraction form
    5,138.82/7,091.57 = 2,901.17/x
  3. Step 3: Cross multiply
    5,138.82x = 7,091.57 × 2,901.17
  4. Step 4: Simplify right side
    5,138.82x = 20,573,800.17
  5. Step 5: Solve for x
    x = 20,573,800.17/5,138.82
  6. Step 6: Final answer
    x = 4,003.60

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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.