Home / 1,787.80-2,683.58-1,008.48

Finding the Fourth Proportional to 1,787.80, 2,683.58 and 1,008.48

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Solution

The fourth proportional to 1,787.80, 2,683.58 and 1,008.48 is: 1,513.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.80 : 2,683.58 = 1,008.48 : x
  2. Step 2: Convert to fraction form
    1,787.80/2,683.58 = 1,008.48/x
  3. Step 3: Cross multiply
    1,787.80x = 2,683.58 × 1,008.48
  4. Step 4: Simplify right side
    1,787.80x = 2,706,336.76
  5. Step 5: Solve for x
    x = 2,706,336.76/1,787.80
  6. Step 6: Final answer
    x = 1,513.78

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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.