Home / 3,911.46-5,400.57-2,419.84

Finding the Fourth Proportional to 3,911.46, 5,400.57 and 2,419.84

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Solution

The fourth proportional to 3,911.46, 5,400.57 and 2,419.84 is: 3,341.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.46 : 5,400.57 = 2,419.84 : x
  2. Step 2: Convert to fraction form
    3,911.46/5,400.57 = 2,419.84/x
  3. Step 3: Cross multiply
    3,911.46x = 5,400.57 × 2,419.84
  4. Step 4: Simplify right side
    3,911.46x = 13,068,515.31
  5. Step 5: Solve for x
    x = 13,068,515.31/3,911.46
  6. Step 6: Final answer
    x = 3,341.09

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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.