Home / 3,379.52-5,071.20-1,328.96

Finding the Fourth Proportional to 3,379.52, 5,071.20 and 1,328.96

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Solution

The fourth proportional to 3,379.52, 5,071.20 and 1,328.96 is: 1,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.52 : 5,071.20 = 1,328.96 : x
  2. Step 2: Convert to fraction form
    3,379.52/5,071.20 = 1,328.96/x
  3. Step 3: Cross multiply
    3,379.52x = 5,071.20 × 1,328.96
  4. Step 4: Simplify right side
    3,379.52x = 6,739,421.95
  5. Step 5: Solve for x
    x = 6,739,421.95/3,379.52
  6. Step 6: Final answer
    x = 1,994.20

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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.