Home / 4,409.30-6,612.35-1,288.68

Finding the Fourth Proportional to 4,409.30, 6,612.35 and 1,288.68

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Solution

The fourth proportional to 4,409.30, 6,612.35 and 1,288.68 is: 1,932.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,409.30 : 6,612.35 = 1,288.68 : x
  2. Step 2: Convert to fraction form
    4,409.30/6,612.35 = 1,288.68/x
  3. Step 3: Cross multiply
    4,409.30x = 6,612.35 × 1,288.68
  4. Step 4: Simplify right side
    4,409.30x = 8,521,196.75
  5. Step 5: Solve for x
    x = 8,521,196.75/4,409.30
  6. Step 6: Final answer
    x = 1,932.55

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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.