Home / 4,787.70-7,181.55-1,277.70

Finding the Fourth Proportional to 4,787.70, 7,181.55 and 1,277.70

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Solution

The fourth proportional to 4,787.70, 7,181.55 and 1,277.70 is: 1,916.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.70 : 7,181.55 = 1,277.70 : x
  2. Step 2: Convert to fraction form
    4,787.70/7,181.55 = 1,277.70/x
  3. Step 3: Cross multiply
    4,787.70x = 7,181.55 × 1,277.70
  4. Step 4: Simplify right side
    4,787.70x = 9,175,866.44
  5. Step 5: Solve for x
    x = 9,175,866.44/4,787.70
  6. Step 6: Final answer
    x = 1,916.55

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Similar ratio
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1.5x scale

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.