Home / 2,015.59-2,781.66-1,426.27

Finding the Fourth Proportional to 2,015.59, 2,781.66 and 1,426.27

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Solution

The fourth proportional to 2,015.59, 2,781.66 and 1,426.27 is: 1,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.59 : 2,781.66 = 1,426.27 : x
  2. Step 2: Convert to fraction form
    2,015.59/2,781.66 = 1,426.27/x
  3. Step 3: Cross multiply
    2,015.59x = 2,781.66 × 1,426.27
  4. Step 4: Simplify right side
    2,015.59x = 3,967,398.21
  5. Step 5: Solve for x
    x = 3,967,398.21/2,015.59
  6. Step 6: Final answer
    x = 1,968.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.