Home / 7,772.49-11,660.55-2,225.91

Finding the Fourth Proportional to 7,772.49, 11,660.55 and 2,225.91

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Solution

The fourth proportional to 7,772.49, 11,660.55 and 2,225.91 is: 3,339.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.49 : 11,660.55 = 2,225.91 : x
  2. Step 2: Convert to fraction form
    7,772.49/11,660.55 = 2,225.91/x
  3. Step 3: Cross multiply
    7,772.49x = 11,660.55 × 2,225.91
  4. Step 4: Simplify right side
    7,772.49x = 25,955,334.85
  5. Step 5: Solve for x
    x = 25,955,334.85/7,772.49
  6. Step 6: Final answer
    x = 3,339.38

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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.