Home / 3,361.28-4,638.61-1,869.33

Finding the Fourth Proportional to 3,361.28, 4,638.61 and 1,869.33

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Solution

The fourth proportional to 3,361.28, 4,638.61 and 1,869.33 is: 2,579.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.28 : 4,638.61 = 1,869.33 : x
  2. Step 2: Convert to fraction form
    3,361.28/4,638.61 = 1,869.33/x
  3. Step 3: Cross multiply
    3,361.28x = 4,638.61 × 1,869.33
  4. Step 4: Simplify right side
    3,361.28x = 8,671,064.96
  5. Step 5: Solve for x
    x = 8,671,064.96/3,361.28
  6. Step 6: Final answer
    x = 2,579.69

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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.