Home / 3,140.30-4,704.06-2,520.65

Finding the Fourth Proportional to 3,140.30, 4,704.06 and 2,520.65

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Solution

The fourth proportional to 3,140.30, 4,704.06 and 2,520.65 is: 3,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.30 : 4,704.06 = 2,520.65 : x
  2. Step 2: Convert to fraction form
    3,140.30/4,704.06 = 2,520.65/x
  3. Step 3: Cross multiply
    3,140.30x = 4,704.06 × 2,520.65
  4. Step 4: Simplify right side
    3,140.30x = 11,857,288.84
  5. Step 5: Solve for x
    x = 11,857,288.84/3,140.30
  6. Step 6: Final answer
    x = 3,775.85

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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.