Home / 4,787.21-7,170.42-2,316.85

Finding the Fourth Proportional to 4,787.21, 7,170.42 and 2,316.85

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Solution

The fourth proportional to 4,787.21, 7,170.42 and 2,316.85 is: 3,470.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.21 : 7,170.42 = 2,316.85 : x
  2. Step 2: Convert to fraction form
    4,787.21/7,170.42 = 2,316.85/x
  3. Step 3: Cross multiply
    4,787.21x = 7,170.42 × 2,316.85
  4. Step 4: Simplify right side
    4,787.21x = 16,612,769.65
  5. Step 5: Solve for x
    x = 16,612,769.65/4,787.21
  6. Step 6: Final answer
    x = 3,470.24

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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.