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Finding the Fourth Proportional to 2,311.88, 3,467.81 and 580.50

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Solution

The fourth proportional to 2,311.88, 3,467.81 and 580.50 is: 870.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.88 : 3,467.81 = 580.50 : x
  2. Step 2: Convert to fraction form
    2,311.88/3,467.81 = 580.50/x
  3. Step 3: Cross multiply
    2,311.88x = 3,467.81 × 580.50
  4. Step 4: Simplify right side
    2,311.88x = 2,013,065.16
  5. Step 5: Solve for x
    x = 2,013,065.16/2,311.88
  6. Step 6: Final answer
    x = 870.75

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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.