Home / 7,021.56-10,525.05-2,859.78

Finding the Fourth Proportional to 7,021.56, 10,525.05 and 2,859.78

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Solution

The fourth proportional to 7,021.56, 10,525.05 and 2,859.78 is: 4,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.56 : 10,525.05 = 2,859.78 : x
  2. Step 2: Convert to fraction form
    7,021.56/10,525.05 = 2,859.78/x
  3. Step 3: Cross multiply
    7,021.56x = 10,525.05 × 2,859.78
  4. Step 4: Simplify right side
    7,021.56x = 30,099,327.49
  5. Step 5: Solve for x
    x = 30,099,327.49/7,021.56
  6. Step 6: Final answer
    x = 4,286.70

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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.