Home / 2,728.05-4,091.40-1,341.13

Finding the Fourth Proportional to 2,728.05, 4,091.40 and 1,341.13

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Solution

The fourth proportional to 2,728.05, 4,091.40 and 1,341.13 is: 2,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.05 : 4,091.40 = 1,341.13 : x
  2. Step 2: Convert to fraction form
    2,728.05/4,091.40 = 1,341.13/x
  3. Step 3: Cross multiply
    2,728.05x = 4,091.40 × 1,341.13
  4. Step 4: Simplify right side
    2,728.05x = 5,487,106.35
  5. Step 5: Solve for x
    x = 5,487,106.35/2,728.05
  6. Step 6: Final answer
    x = 2,011.36

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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.