Home / 4,787.63-7,181.99-2,190.23

Finding the Fourth Proportional to 4,787.63, 7,181.99 and 2,190.23

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Solution

The fourth proportional to 4,787.63, 7,181.99 and 2,190.23 is: 3,285.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.63 : 7,181.99 = 2,190.23 : x
  2. Step 2: Convert to fraction form
    4,787.63/7,181.99 = 2,190.23/x
  3. Step 3: Cross multiply
    4,787.63x = 7,181.99 × 2,190.23
  4. Step 4: Simplify right side
    4,787.63x = 15,730,209.96
  5. Step 5: Solve for x
    x = 15,730,209.96/4,787.63
  6. Step 6: Final answer
    x = 3,285.59

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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.