Home / 3,379.13-5,065.26-1,621.55

Finding the Fourth Proportional to 3,379.13, 5,065.26 and 1,621.55

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Solution

The fourth proportional to 3,379.13, 5,065.26 and 1,621.55 is: 2,430.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.13 : 5,065.26 = 1,621.55 : x
  2. Step 2: Convert to fraction form
    3,379.13/5,065.26 = 1,621.55/x
  3. Step 3: Cross multiply
    3,379.13x = 5,065.26 × 1,621.55
  4. Step 4: Simplify right side
    3,379.13x = 8,213,547.03
  5. Step 5: Solve for x
    x = 8,213,547.03/3,379.13
  6. Step 6: Final answer
    x = 2,430.67

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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.