Home / 2,649.11-3,975.08-1,555.61

Finding the Fourth Proportional to 2,649.11, 3,975.08 and 1,555.61

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Solution

The fourth proportional to 2,649.11, 3,975.08 and 1,555.61 is: 2,334.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.11 : 3,975.08 = 1,555.61 : x
  2. Step 2: Convert to fraction form
    2,649.11/3,975.08 = 1,555.61/x
  3. Step 3: Cross multiply
    2,649.11x = 3,975.08 × 1,555.61
  4. Step 4: Simplify right side
    2,649.11x = 6,183,646.55
  5. Step 5: Solve for x
    x = 6,183,646.55/2,649.11
  6. Step 6: Final answer
    x = 2,334.24

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Similar ratio
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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.