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Finding the Fourth Proportional to 1,872.41, 2,808.50 and 573.87

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Solution

The fourth proportional to 1,872.41, 2,808.50 and 573.87 is: 860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.41 : 2,808.50 = 573.87 : x
  2. Step 2: Convert to fraction form
    1,872.41/2,808.50 = 573.87/x
  3. Step 3: Cross multiply
    1,872.41x = 2,808.50 × 573.87
  4. Step 4: Simplify right side
    1,872.41x = 1,611,715.33
  5. Step 5: Solve for x
    x = 1,611,715.33/1,872.41
  6. Step 6: Final answer
    x = 860.77

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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.