Home / 4,155.15-6,231.65-1,232.78

Finding the Fourth Proportional to 4,155.15, 6,231.65 and 1,232.78

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Solution

The fourth proportional to 4,155.15, 6,231.65 and 1,232.78 is: 1,848.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.15 : 6,231.65 = 1,232.78 : x
  2. Step 2: Convert to fraction form
    4,155.15/6,231.65 = 1,232.78/x
  3. Step 3: Cross multiply
    4,155.15x = 6,231.65 × 1,232.78
  4. Step 4: Simplify right side
    4,155.15x = 7,682,216.16
  5. Step 5: Solve for x
    x = 7,682,216.16/4,155.15
  6. Step 6: Final answer
    x = 1,848.84

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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.