Home / 3,379.75-5,045.16-2,920.48

Finding the Fourth Proportional to 3,379.75, 5,045.16 and 2,920.48

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Solution

The fourth proportional to 3,379.75, 5,045.16 and 2,920.48 is: 4,359.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.75 : 5,045.16 = 2,920.48 : x
  2. Step 2: Convert to fraction form
    3,379.75/5,045.16 = 2,920.48/x
  3. Step 3: Cross multiply
    3,379.75x = 5,045.16 × 2,920.48
  4. Step 4: Simplify right side
    3,379.75x = 14,734,288.88
  5. Step 5: Solve for x
    x = 14,734,288.88/3,379.75
  6. Step 6: Final answer
    x = 4,359.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.