Home / 3,361.12-4,638.62-1,869.32

Finding the Fourth Proportional to 3,361.12, 4,638.62 and 1,869.32

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Solution

The fourth proportional to 3,361.12, 4,638.62 and 1,869.32 is: 2,579.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.12 : 4,638.62 = 1,869.32 : x
  2. Step 2: Convert to fraction form
    3,361.12/4,638.62 = 1,869.32/x
  3. Step 3: Cross multiply
    3,361.12x = 4,638.62 × 1,869.32
  4. Step 4: Simplify right side
    3,361.12x = 8,671,065.14
  5. Step 5: Solve for x
    x = 8,671,065.14/3,361.12
  6. Step 6: Final answer
    x = 2,579.81

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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.