Home / 3,901.90-5,384.36-2,133.14

Finding the Fourth Proportional to 3,901.90, 5,384.36 and 2,133.14

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Solution

The fourth proportional to 3,901.90, 5,384.36 and 2,133.14 is: 2,943.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.90 : 5,384.36 = 2,133.14 : x
  2. Step 2: Convert to fraction form
    3,901.90/5,384.36 = 2,133.14/x
  3. Step 3: Cross multiply
    3,901.90x = 5,384.36 × 2,133.14
  4. Step 4: Simplify right side
    3,901.90x = 11,485,593.69
  5. Step 5: Solve for x
    x = 11,485,593.69/3,901.90
  6. Step 6: Final answer
    x = 2,943.59

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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.