Home / 7,020.30-10,529.85-2,860.74

Finding the Fourth Proportional to 7,020.30, 10,529.85 and 2,860.74

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Solution

The fourth proportional to 7,020.30, 10,529.85 and 2,860.74 is: 4,290.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.30 : 10,529.85 = 2,860.74 : x
  2. Step 2: Convert to fraction form
    7,020.30/10,529.85 = 2,860.74/x
  3. Step 3: Cross multiply
    7,020.30x = 10,529.85 × 2,860.74
  4. Step 4: Simplify right side
    7,020.30x = 30,123,163.09
  5. Step 5: Solve for x
    x = 30,123,163.09/7,020.30
  6. Step 6: Final answer
    x = 4,290.87

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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.