Home / 3,436.62-5,157.96-1,878.06

Finding the Fourth Proportional to 3,436.62, 5,157.96 and 1,878.06

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Solution

The fourth proportional to 3,436.62, 5,157.96 and 1,878.06 is: 2,818.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,436.62 : 5,157.96 = 1,878.06 : x
  2. Step 2: Convert to fraction form
    3,436.62/5,157.96 = 1,878.06/x
  3. Step 3: Cross multiply
    3,436.62x = 5,157.96 × 1,878.06
  4. Step 4: Simplify right side
    3,436.62x = 9,686,958.36
  5. Step 5: Solve for x
    x = 9,686,958.36/3,436.62
  6. Step 6: Final answer
    x = 2,818.75

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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.