Home / 7,474.10-11,209.40-2,209.45

Finding the Fourth Proportional to 7,474.10, 11,209.40 and 2,209.45

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Solution

The fourth proportional to 7,474.10, 11,209.40 and 2,209.45 is: 3,313.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.10 : 11,209.40 = 2,209.45 : x
  2. Step 2: Convert to fraction form
    7,474.10/11,209.40 = 2,209.45/x
  3. Step 3: Cross multiply
    7,474.10x = 11,209.40 × 2,209.45
  4. Step 4: Simplify right side
    7,474.10x = 24,766,597.78
  5. Step 5: Solve for x
    x = 24,766,597.78/7,474.10
  6. Step 6: Final answer
    x = 3,313.66

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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.