Home / 1,910.24-2,862.12-1,728.80

Finding the Fourth Proportional to 1,910.24, 2,862.12 and 1,728.80

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Solution

The fourth proportional to 1,910.24, 2,862.12 and 1,728.80 is: 2,590.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.24 : 2,862.12 = 1,728.80 : x
  2. Step 2: Convert to fraction form
    1,910.24/2,862.12 = 1,728.80/x
  3. Step 3: Cross multiply
    1,910.24x = 2,862.12 × 1,728.80
  4. Step 4: Simplify right side
    1,910.24x = 4,948,033.06
  5. Step 5: Solve for x
    x = 4,948,033.06/1,910.24
  6. Step 6: Final answer
    x = 2,590.27

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1.5x scale

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.