Home / 2,695.47-3,721.86-2,107.68

Finding the Fourth Proportional to 2,695.47, 3,721.86 and 2,107.68

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Solution

The fourth proportional to 2,695.47, 3,721.86 and 2,107.68 is: 2,910.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.47 : 3,721.86 = 2,107.68 : x
  2. Step 2: Convert to fraction form
    2,695.47/3,721.86 = 2,107.68/x
  3. Step 3: Cross multiply
    2,695.47x = 3,721.86 × 2,107.68
  4. Step 4: Simplify right side
    2,695.47x = 7,844,489.88
  5. Step 5: Solve for x
    x = 7,844,489.88/2,695.47
  6. Step 6: Final answer
    x = 2,910.25

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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.