Home / 3,378.61-5,045.73-2,879.70

Finding the Fourth Proportional to 3,378.61, 5,045.73 and 2,879.70

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Solution

The fourth proportional to 3,378.61, 5,045.73 and 2,879.70 is: 4,300.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.61 : 5,045.73 = 2,879.70 : x
  2. Step 2: Convert to fraction form
    3,378.61/5,045.73 = 2,879.70/x
  3. Step 3: Cross multiply
    3,378.61x = 5,045.73 × 2,879.70
  4. Step 4: Simplify right side
    3,378.61x = 14,530,188.68
  5. Step 5: Solve for x
    x = 14,530,188.68/3,378.61
  6. Step 6: Final answer
    x = 4,300.64

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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.