Home / 5,175.04-7,141.51-2,817.20

Finding the Fourth Proportional to 5,175.04, 7,141.51 and 2,817.20

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Solution

The fourth proportional to 5,175.04, 7,141.51 and 2,817.20 is: 3,887.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.04 : 7,141.51 = 2,817.20 : x
  2. Step 2: Convert to fraction form
    5,175.04/7,141.51 = 2,817.20/x
  3. Step 3: Cross multiply
    5,175.04x = 7,141.51 × 2,817.20
  4. Step 4: Simplify right side
    5,175.04x = 20,119,061.97
  5. Step 5: Solve for x
    x = 20,119,061.97/5,175.04
  6. Step 6: Final answer
    x = 3,887.71

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Half 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.