Home / 7,715.25-10,649.78-4,571.44

Finding the Fourth Proportional to 7,715.25, 10,649.78 and 4,571.44

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Solution

The fourth proportional to 7,715.25, 10,649.78 and 4,571.44 is: 6,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.25 : 10,649.78 = 4,571.44 : x
  2. Step 2: Convert to fraction form
    7,715.25/10,649.78 = 4,571.44/x
  3. Step 3: Cross multiply
    7,715.25x = 10,649.78 × 4,571.44
  4. Step 4: Simplify right side
    7,715.25x = 48,684,797.94
  5. Step 5: Solve for x
    x = 48,684,797.94/7,715.25
  6. Step 6: Final answer
    x = 6,310.20

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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.