Home / 5,787.10-7,986.21-3,429.09

Finding the Fourth Proportional to 5,787.10, 7,986.21 and 3,429.09

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Solution

The fourth proportional to 5,787.10, 7,986.21 and 3,429.09 is: 4,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.10 : 7,986.21 = 3,429.09 : x
  2. Step 2: Convert to fraction form
    5,787.10/7,986.21 = 3,429.09/x
  3. Step 3: Cross multiply
    5,787.10x = 7,986.21 × 3,429.09
  4. Step 4: Simplify right side
    5,787.10x = 27,385,432.85
  5. Step 5: Solve for x
    x = 27,385,432.85/5,787.10
  6. Step 6: Final answer
    x = 4,732.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.