Home / 7,675.65-11,509.70-2,480.85

Finding the Fourth Proportional to 7,675.65, 11,509.70 and 2,480.85

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Solution

The fourth proportional to 7,675.65, 11,509.70 and 2,480.85 is: 3,720.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,675.65 : 11,509.70 = 2,480.85 : x
  2. Step 2: Convert to fraction form
    7,675.65/11,509.70 = 2,480.85/x
  3. Step 3: Cross multiply
    7,675.65x = 11,509.70 × 2,480.85
  4. Step 4: Simplify right side
    7,675.65x = 28,553,826.84
  5. Step 5: Solve for x
    x = 28,553,826.84/7,675.65
  6. Step 6: Final answer
    x = 3,720.05

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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.