Home / 2,265.12-3,390.96-1,236

Finding the Fourth Proportional to 2,265.12, 3,390.96 and 1,236

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Solution

The fourth proportional to 2,265.12, 3,390.96 and 1,236 is: 1,850.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.12 : 3,390.96 = 1,236 : x
  2. Step 2: Convert to fraction form
    2,265.12/3,390.96 = 1,236/x
  3. Step 3: Cross multiply
    2,265.12x = 3,390.96 × 1,236
  4. Step 4: Simplify right side
    2,265.12x = 4,191,226.56
  5. Step 5: Solve for x
    x = 4,191,226.56/2,265.12
  6. Step 6: Final answer
    x = 1,850.33

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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.