Home / 2,698.11-4,047.81-1,381.32

Finding the Fourth Proportional to 2,698.11, 4,047.81 and 1,381.32

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Solution

The fourth proportional to 2,698.11, 4,047.81 and 1,381.32 is: 2,072.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.11 : 4,047.81 = 1,381.32 : x
  2. Step 2: Convert to fraction form
    2,698.11/4,047.81 = 1,381.32/x
  3. Step 3: Cross multiply
    2,698.11x = 4,047.81 × 1,381.32
  4. Step 4: Simplify right side
    2,698.11x = 5,591,320.91
  5. Step 5: Solve for x
    x = 5,591,320.91/2,698.11
  6. Step 6: Final answer
    x = 2,072.31

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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.