Home / 1,787.39-2,680.84-1,006.89

Finding the Fourth Proportional to 1,787.39, 2,680.84 and 1,006.89

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Solution

The fourth proportional to 1,787.39, 2,680.84 and 1,006.89 is: 1,510.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.39 : 2,680.84 = 1,006.89 : x
  2. Step 2: Convert to fraction form
    1,787.39/2,680.84 = 1,006.89/x
  3. Step 3: Cross multiply
    1,787.39x = 2,680.84 × 1,006.89
  4. Step 4: Simplify right side
    1,787.39x = 2,699,310.99
  5. Step 5: Solve for x
    x = 2,699,310.99/1,787.39
  6. Step 6: Final answer
    x = 1,510.20

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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.