Home / 2,015.98-2,781.92-1,119.66

Finding the Fourth Proportional to 2,015.98, 2,781.92 and 1,119.66

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Solution

The fourth proportional to 2,015.98, 2,781.92 and 1,119.66 is: 1,545.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.98 : 2,781.92 = 1,119.66 : x
  2. Step 2: Convert to fraction form
    2,015.98/2,781.92 = 1,119.66/x
  3. Step 3: Cross multiply
    2,015.98x = 2,781.92 × 1,119.66
  4. Step 4: Simplify right side
    2,015.98x = 3,114,804.55
  5. Step 5: Solve for x
    x = 3,114,804.55/2,015.98
  6. Step 6: Final answer
    x = 1,545.06

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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.