Home / 3,379.84-5,070.44-1,190.11

Finding the Fourth Proportional to 3,379.84, 5,070.44 and 1,190.11

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Solution

The fourth proportional to 3,379.84, 5,070.44 and 1,190.11 is: 1,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.84 : 5,070.44 = 1,190.11 : x
  2. Step 2: Convert to fraction form
    3,379.84/5,070.44 = 1,190.11/x
  3. Step 3: Cross multiply
    3,379.84x = 5,070.44 × 1,190.11
  4. Step 4: Simplify right side
    3,379.84x = 6,034,381.35
  5. Step 5: Solve for x
    x = 6,034,381.35/3,379.84
  6. Step 6: Final answer
    x = 1,785.40

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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.