Home / 3,619.68-4,990.32-2,876.10

Finding the Fourth Proportional to 3,619.68, 4,990.32 and 2,876.10

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Solution

The fourth proportional to 3,619.68, 4,990.32 and 2,876.10 is: 3,965.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.68 : 4,990.32 = 2,876.10 : x
  2. Step 2: Convert to fraction form
    3,619.68/4,990.32 = 2,876.10/x
  3. Step 3: Cross multiply
    3,619.68x = 4,990.32 × 2,876.10
  4. Step 4: Simplify right side
    3,619.68x = 14,352,659.35
  5. Step 5: Solve for x
    x = 14,352,659.35/3,619.68
  6. Step 6: Final answer
    x = 3,965.17

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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.