Home / 7,754.21-10,700.78-4,217.43

Finding the Fourth Proportional to 7,754.21, 10,700.78 and 4,217.43

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Solution

The fourth proportional to 7,754.21, 10,700.78 and 4,217.43 is: 5,820.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,754.21 : 10,700.78 = 4,217.43 : x
  2. Step 2: Convert to fraction form
    7,754.21/10,700.78 = 4,217.43/x
  3. Step 3: Cross multiply
    7,754.21x = 10,700.78 × 4,217.43
  4. Step 4: Simplify right side
    7,754.21x = 45,129,716.00
  5. Step 5: Solve for x
    x = 45,129,716.00/7,754.21
  6. Step 6: Final answer
    x = 5,820.03

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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.