Home / 3,376.80-5,065.18-1,186.15

Finding the Fourth Proportional to 3,376.80, 5,065.18 and 1,186.15

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Solution

The fourth proportional to 3,376.80, 5,065.18 and 1,186.15 is: 1,779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,376.80 : 5,065.18 = 1,186.15 : x
  2. Step 2: Convert to fraction form
    3,376.80/5,065.18 = 1,186.15/x
  3. Step 3: Cross multiply
    3,376.80x = 5,065.18 × 1,186.15
  4. Step 4: Simplify right side
    3,376.80x = 6,008,063.26
  5. Step 5: Solve for x
    x = 6,008,063.26/3,376.80
  6. Step 6: Final answer
    x = 1,779.22

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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.