Home / 1,908.24-2,859.12-1,726.80

Finding the Fourth Proportional to 1,908.24, 2,859.12 and 1,726.80

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Solution

The fourth proportional to 1,908.24, 2,859.12 and 1,726.80 is: 2,587.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.24 : 2,859.12 = 1,726.80 : x
  2. Step 2: Convert to fraction form
    1,908.24/2,859.12 = 1,726.80/x
  3. Step 3: Cross multiply
    1,908.24x = 2,859.12 × 1,726.80
  4. Step 4: Simplify right side
    1,908.24x = 4,937,128.42
  5. Step 5: Solve for x
    x = 4,937,128.42/1,908.24
  6. Step 6: Final answer
    x = 2,587.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.