Home / 2,234.32-3,083.12-1,289.84

Finding the Fourth Proportional to 2,234.32, 3,083.12 and 1,289.84

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Solution

The fourth proportional to 2,234.32, 3,083.12 and 1,289.84 is: 1,779.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,234.32 : 3,083.12 = 1,289.84 : x
  2. Step 2: Convert to fraction form
    2,234.32/3,083.12 = 1,289.84/x
  3. Step 3: Cross multiply
    2,234.32x = 3,083.12 × 1,289.84
  4. Step 4: Simplify right side
    2,234.32x = 3,976,731.50
  5. Step 5: Solve for x
    x = 3,976,731.50/2,234.32
  6. Step 6: Final answer
    x = 1,779.84

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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.