Home / 2,174.28-3,261.39-530.87

Finding the Fourth Proportional to 2,174.28, 3,261.39 and 530.87

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Solution

The fourth proportional to 2,174.28, 3,261.39 and 530.87 is: 796.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.28 : 3,261.39 = 530.87 : x
  2. Step 2: Convert to fraction form
    2,174.28/3,261.39 = 530.87/x
  3. Step 3: Cross multiply
    2,174.28x = 3,261.39 × 530.87
  4. Step 4: Simplify right side
    2,174.28x = 1,731,357.80
  5. Step 5: Solve for x
    x = 1,731,357.80/2,174.28
  6. Step 6: Final answer
    x = 796.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.