Home / 4,409.29-6,612.94-1,288.54

Finding the Fourth Proportional to 4,409.29, 6,612.94 and 1,288.54

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Solution

The fourth proportional to 4,409.29, 6,612.94 and 1,288.54 is: 1,932.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,409.29 : 6,612.94 = 1,288.54 : x
  2. Step 2: Convert to fraction form
    4,409.29/6,612.94 = 1,288.54/x
  3. Step 3: Cross multiply
    4,409.29x = 6,612.94 × 1,288.54
  4. Step 4: Simplify right side
    4,409.29x = 8,520,998.20
  5. Step 5: Solve for x
    x = 8,520,998.20/4,409.29
  6. Step 6: Final answer
    x = 1,932.51

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1.5x scale

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.