Home / 7,144.40-10,716.36-2,762.78

Finding the Fourth Proportional to 7,144.40, 10,716.36 and 2,762.78

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Solution

The fourth proportional to 7,144.40, 10,716.36 and 2,762.78 is: 4,144.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.40 : 10,716.36 = 2,762.78 : x
  2. Step 2: Convert to fraction form
    7,144.40/10,716.36 = 2,762.78/x
  3. Step 3: Cross multiply
    7,144.40x = 10,716.36 × 2,762.78
  4. Step 4: Simplify right side
    7,144.40x = 29,606,945.08
  5. Step 5: Solve for x
    x = 29,606,945.08/7,144.40
  6. Step 6: Final answer
    x = 4,144.08

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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.