Home / 3,878.37-5,350.42-2,619.02

Finding the Fourth Proportional to 3,878.37, 5,350.42 and 2,619.02

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Solution

The fourth proportional to 3,878.37, 5,350.42 and 2,619.02 is: 3,613.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.37 : 5,350.42 = 2,619.02 : x
  2. Step 2: Convert to fraction form
    3,878.37/5,350.42 = 2,619.02/x
  3. Step 3: Cross multiply
    3,878.37x = 5,350.42 × 2,619.02
  4. Step 4: Simplify right side
    3,878.37x = 14,012,856.99
  5. Step 5: Solve for x
    x = 14,012,856.99/3,878.37
  6. Step 6: Final answer
    x = 3,613.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.