Home / 7,480.74-11,220.68-2,286.60

Finding the Fourth Proportional to 7,480.74, 11,220.68 and 2,286.60

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Solution

The fourth proportional to 7,480.74, 11,220.68 and 2,286.60 is: 3,429.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.74 : 11,220.68 = 2,286.60 : x
  2. Step 2: Convert to fraction form
    7,480.74/11,220.68 = 2,286.60/x
  3. Step 3: Cross multiply
    7,480.74x = 11,220.68 × 2,286.60
  4. Step 4: Simplify right side
    7,480.74x = 25,657,206.89
  5. Step 5: Solve for x
    x = 25,657,206.89/7,480.74
  6. Step 6: Final answer
    x = 3,429.77

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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.