Home / 2,174.12-3,261.21-530.70

Finding the Fourth Proportional to 2,174.12, 3,261.21 and 530.70

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Solution

The fourth proportional to 2,174.12, 3,261.21 and 530.70 is: 796.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.12 : 3,261.21 = 530.70 : x
  2. Step 2: Convert to fraction form
    2,174.12/3,261.21 = 530.70/x
  3. Step 3: Cross multiply
    2,174.12x = 3,261.21 × 530.70
  4. Step 4: Simplify right side
    2,174.12x = 1,730,724.15
  5. Step 5: Solve for x
    x = 1,730,724.15/2,174.12
  6. Step 6: Final answer
    x = 796.06

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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.