Home / 3,875.88-5,348.68-2,107.48

Finding the Fourth Proportional to 3,875.88, 5,348.68 and 2,107.48

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Solution

The fourth proportional to 3,875.88, 5,348.68 and 2,107.48 is: 2,908.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.88 : 5,348.68 = 2,107.48 : x
  2. Step 2: Convert to fraction form
    3,875.88/5,348.68 = 2,107.48/x
  3. Step 3: Cross multiply
    3,875.88x = 5,348.68 × 2,107.48
  4. Step 4: Simplify right side
    3,875.88x = 11,272,236.13
  5. Step 5: Solve for x
    x = 11,272,236.13/3,875.88
  6. Step 6: Final answer
    x = 2,908.30

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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.