Home / 5,174.94-7,141.38-2,817.02

Finding the Fourth Proportional to 5,174.94, 7,141.38 and 2,817.02

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Solution

The fourth proportional to 5,174.94, 7,141.38 and 2,817.02 is: 3,887.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.94 : 7,141.38 = 2,817.02 : x
  2. Step 2: Convert to fraction form
    5,174.94/7,141.38 = 2,817.02/x
  3. Step 3: Cross multiply
    5,174.94x = 7,141.38 × 2,817.02
  4. Step 4: Simplify right side
    5,174.94x = 20,117,410.29
  5. Step 5: Solve for x
    x = 20,117,410.29/5,174.94
  6. Step 6: Final answer
    x = 3,887.47

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Half scale
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Double scale
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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.