Home / 3,113.66-4,297.11-1,787.42

Finding the Fourth Proportional to 3,113.66, 4,297.11 and 1,787.42

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Solution

The fourth proportional to 3,113.66, 4,297.11 and 1,787.42 is: 2,466.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.66 : 4,297.11 = 1,787.42 : x
  2. Step 2: Convert to fraction form
    3,113.66/4,297.11 = 1,787.42/x
  3. Step 3: Cross multiply
    3,113.66x = 4,297.11 × 1,787.42
  4. Step 4: Simplify right side
    3,113.66x = 7,680,740.36
  5. Step 5: Solve for x
    x = 7,680,740.36/3,113.66
  6. Step 6: Final answer
    x = 2,466.79

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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.