Home / 2,636.61-3,630.20-2,321.66

Finding the Fourth Proportional to 2,636.61, 3,630.20 and 2,321.66

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Solution

The fourth proportional to 2,636.61, 3,630.20 and 2,321.66 is: 3,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.61 : 3,630.20 = 2,321.66 : x
  2. Step 2: Convert to fraction form
    2,636.61/3,630.20 = 2,321.66/x
  3. Step 3: Cross multiply
    2,636.61x = 3,630.20 × 2,321.66
  4. Step 4: Simplify right side
    2,636.61x = 8,428,060.37
  5. Step 5: Solve for x
    x = 8,428,060.37/2,636.61
  6. Step 6: Final answer
    x = 3,196.55

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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.