Home / 7,040.20-10,561.65-2,109.73

Finding the Fourth Proportional to 7,040.20, 10,561.65 and 2,109.73

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Solution

The fourth proportional to 7,040.20, 10,561.65 and 2,109.73 is: 3,165.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.20 : 10,561.65 = 2,109.73 : x
  2. Step 2: Convert to fraction form
    7,040.20/10,561.65 = 2,109.73/x
  3. Step 3: Cross multiply
    7,040.20x = 10,561.65 × 2,109.73
  4. Step 4: Simplify right side
    7,040.20x = 22,282,229.85
  5. Step 5: Solve for x
    x = 22,282,229.85/7,040.20
  6. Step 6: Final answer
    x = 3,165.00

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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.