Home / 2,297.86-3,187.31-2,219.19

Finding the Fourth Proportional to 2,297.86, 3,187.31 and 2,219.19

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Solution

The fourth proportional to 2,297.86, 3,187.31 and 2,219.19 is: 3,078.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,297.86 : 3,187.31 = 2,219.19 : x
  2. Step 2: Convert to fraction form
    2,297.86/3,187.31 = 2,219.19/x
  3. Step 3: Cross multiply
    2,297.86x = 3,187.31 × 2,219.19
  4. Step 4: Simplify right side
    2,297.86x = 7,073,246.48
  5. Step 5: Solve for x
    x = 7,073,246.48/2,297.86
  6. Step 6: Final answer
    x = 3,078.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.