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Finding the Fourth Proportional to 1,787.50, 2,681.34 and 633.34

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Solution

The fourth proportional to 1,787.50, 2,681.34 and 633.34 is: 950.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.50 : 2,681.34 = 633.34 : x
  2. Step 2: Convert to fraction form
    1,787.50/2,681.34 = 633.34/x
  3. Step 3: Cross multiply
    1,787.50x = 2,681.34 × 633.34
  4. Step 4: Simplify right side
    1,787.50x = 1,698,199.88
  5. Step 5: Solve for x
    x = 1,698,199.88/1,787.50
  6. Step 6: Final answer
    x = 950.04

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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.