Home / 2,272.15-3,407.78-1,102.15

Finding the Fourth Proportional to 2,272.15, 3,407.78 and 1,102.15

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Solution

The fourth proportional to 2,272.15, 3,407.78 and 1,102.15 is: 1,653.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.15 : 3,407.78 = 1,102.15 : x
  2. Step 2: Convert to fraction form
    2,272.15/3,407.78 = 1,102.15/x
  3. Step 3: Cross multiply
    2,272.15x = 3,407.78 × 1,102.15
  4. Step 4: Simplify right side
    2,272.15x = 3,755,879.22
  5. Step 5: Solve for x
    x = 3,755,879.22/2,272.15
  6. Step 6: Final answer
    x = 1,653.01

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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.