Home / 3,991.32-5,508.51-2,419.41

Finding the Fourth Proportional to 3,991.32, 5,508.51 and 2,419.41

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Solution

The fourth proportional to 3,991.32, 5,508.51 and 2,419.41 is: 3,339.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.32 : 5,508.51 = 2,419.41 : x
  2. Step 2: Convert to fraction form
    3,991.32/5,508.51 = 2,419.41/x
  3. Step 3: Cross multiply
    3,991.32x = 5,508.51 × 2,419.41
  4. Step 4: Simplify right side
    3,991.32x = 13,327,344.18
  5. Step 5: Solve for x
    x = 13,327,344.18/3,991.32
  6. Step 6: Final answer
    x = 3,339.08

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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.