Home / 3,155.15-4,731.12-1,839.32

Finding the Fourth Proportional to 3,155.15, 4,731.12 and 1,839.32

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Solution

The fourth proportional to 3,155.15, 4,731.12 and 1,839.32 is: 2,758.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.15 : 4,731.12 = 1,839.32 : x
  2. Step 2: Convert to fraction form
    3,155.15/4,731.12 = 1,839.32/x
  3. Step 3: Cross multiply
    3,155.15x = 4,731.12 × 1,839.32
  4. Step 4: Simplify right side
    3,155.15x = 8,702,019.98
  5. Step 5: Solve for x
    x = 8,702,019.98/3,155.15
  6. Step 6: Final answer
    x = 2,758.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.