Home / 3,919.53-5,411.49-2,429.03

Finding the Fourth Proportional to 3,919.53, 5,411.49 and 2,429.03

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Solution

The fourth proportional to 3,919.53, 5,411.49 and 2,429.03 is: 3,353.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.53 : 5,411.49 = 2,429.03 : x
  2. Step 2: Convert to fraction form
    3,919.53/5,411.49 = 2,429.03/x
  3. Step 3: Cross multiply
    3,919.53x = 5,411.49 × 2,429.03
  4. Step 4: Simplify right side
    3,919.53x = 13,144,671.55
  5. Step 5: Solve for x
    x = 13,144,671.55/3,919.53
  6. Step 6: Final answer
    x = 3,353.63

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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.