Home / 2,725.21-4,086.60-1,165.15

Finding the Fourth Proportional to 2,725.21, 4,086.60 and 1,165.15

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Solution

The fourth proportional to 2,725.21, 4,086.60 and 1,165.15 is: 1,747.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.21 : 4,086.60 = 1,165.15 : x
  2. Step 2: Convert to fraction form
    2,725.21/4,086.60 = 1,165.15/x
  3. Step 3: Cross multiply
    2,725.21x = 4,086.60 × 1,165.15
  4. Step 4: Simplify right side
    2,725.21x = 4,761,501.99
  5. Step 5: Solve for x
    x = 4,761,501.99/2,725.21
  6. Step 6: Final answer
    x = 1,747.21

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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.