Home / 2,787.18-4,180.89-1,553.65

Finding the Fourth Proportional to 2,787.18, 4,180.89 and 1,553.65

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Solution

The fourth proportional to 2,787.18, 4,180.89 and 1,553.65 is: 2,330.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.18 : 4,180.89 = 1,553.65 : x
  2. Step 2: Convert to fraction form
    2,787.18/4,180.89 = 1,553.65/x
  3. Step 3: Cross multiply
    2,787.18x = 4,180.89 × 1,553.65
  4. Step 4: Simplify right side
    2,787.18x = 6,495,639.75
  5. Step 5: Solve for x
    x = 6,495,639.75/2,787.18
  6. Step 6: Final answer
    x = 2,330.54

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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.