Home / 7,745.85-11,619.65-2,479.63

Finding the Fourth Proportional to 7,745.85, 11,619.65 and 2,479.63

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Solution

The fourth proportional to 7,745.85, 11,619.65 and 2,479.63 is: 3,719.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.85 : 11,619.65 = 2,479.63 : x
  2. Step 2: Convert to fraction form
    7,745.85/11,619.65 = 2,479.63/x
  3. Step 3: Cross multiply
    7,745.85x = 11,619.65 × 2,479.63
  4. Step 4: Simplify right side
    7,745.85x = 28,812,382.65
  5. Step 5: Solve for x
    x = 28,812,382.65/7,745.85
  6. Step 6: Final answer
    x = 3,719.72

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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.