Home / 5,171.19-7,136.27-2,813.32

Finding the Fourth Proportional to 5,171.19, 7,136.27 and 2,813.32

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Solution

The fourth proportional to 5,171.19, 7,136.27 and 2,813.32 is: 3,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.19 : 7,136.27 = 2,813.32 : x
  2. Step 2: Convert to fraction form
    5,171.19/7,136.27 = 2,813.32/x
  3. Step 3: Cross multiply
    5,171.19x = 7,136.27 × 2,813.32
  4. Step 4: Simplify right side
    5,171.19x = 20,076,597.05
  5. Step 5: Solve for x
    x = 20,076,597.05/5,171.19
  6. Step 6: Final answer
    x = 3,882.40

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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.