Home / 3,379.56-5,069.32-1,820.30

Finding the Fourth Proportional to 3,379.56, 5,069.32 and 1,820.30

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Solution

The fourth proportional to 3,379.56, 5,069.32 and 1,820.30 is: 2,730.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.56 : 5,069.32 = 1,820.30 : x
  2. Step 2: Convert to fraction form
    3,379.56/5,069.32 = 1,820.30/x
  3. Step 3: Cross multiply
    3,379.56x = 5,069.32 × 1,820.30
  4. Step 4: Simplify right side
    3,379.56x = 9,227,683.20
  5. Step 5: Solve for x
    x = 9,227,683.20/3,379.56
  6. Step 6: Final answer
    x = 2,730.44

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1.5x scale

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.