Home / 5,171.06-7,136.12-2,813.25

Finding the Fourth Proportional to 5,171.06, 7,136.12 and 2,813.25

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Solution

The fourth proportional to 5,171.06, 7,136.12 and 2,813.25 is: 3,882.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.06 : 7,136.12 = 2,813.25 : x
  2. Step 2: Convert to fraction form
    5,171.06/7,136.12 = 2,813.25/x
  3. Step 3: Cross multiply
    5,171.06x = 7,136.12 × 2,813.25
  4. Step 4: Simplify right side
    5,171.06x = 20,075,723.38
  5. Step 5: Solve for x
    x = 20,075,723.38/5,171.06
  6. Step 6: Final answer
    x = 3,882.32

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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.