Home / 2,817.07-3,887.55-1,575.07

Finding the Fourth Proportional to 2,817.07, 3,887.55 and 1,575.07

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Solution

The fourth proportional to 2,817.07, 3,887.55 and 1,575.07 is: 2,173.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.07 : 3,887.55 = 1,575.07 : x
  2. Step 2: Convert to fraction form
    2,817.07/3,887.55 = 1,575.07/x
  3. Step 3: Cross multiply
    2,817.07x = 3,887.55 × 1,575.07
  4. Step 4: Simplify right side
    2,817.07x = 6,123,163.38
  5. Step 5: Solve for x
    x = 6,123,163.38/2,817.07
  6. Step 6: Final answer
    x = 2,173.59

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Half scale
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Double scale
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Similar ratio
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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.