Home / 2,781.18-4,173.81-1,394.13

Finding the Fourth Proportional to 2,781.18, 4,173.81 and 1,394.13

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Solution

The fourth proportional to 2,781.18, 4,173.81 and 1,394.13 is: 2,092.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.18 : 4,173.81 = 1,394.13 : x
  2. Step 2: Convert to fraction form
    2,781.18/4,173.81 = 1,394.13/x
  3. Step 3: Cross multiply
    2,781.18x = 4,173.81 × 1,394.13
  4. Step 4: Simplify right side
    2,781.18x = 5,818,833.74
  5. Step 5: Solve for x
    x = 5,818,833.74/2,781.18
  6. Step 6: Final answer
    x = 2,092.22

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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.