Home / 6,639.63-9,959.72-2,257.13

Finding the Fourth Proportional to 6,639.63, 9,959.72 and 2,257.13

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Solution

The fourth proportional to 6,639.63, 9,959.72 and 2,257.13 is: 3,385.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.63 : 9,959.72 = 2,257.13 : x
  2. Step 2: Convert to fraction form
    6,639.63/9,959.72 = 2,257.13/x
  3. Step 3: Cross multiply
    6,639.63x = 9,959.72 × 2,257.13
  4. Step 4: Simplify right side
    6,639.63x = 22,480,321.72
  5. Step 5: Solve for x
    x = 22,480,321.72/6,639.63
  6. Step 6: Final answer
    x = 3,385.78

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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.