Home / 4,299.50-6,449.49-1,221.74

Finding the Fourth Proportional to 4,299.50, 6,449.49 and 1,221.74

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Solution

The fourth proportional to 4,299.50, 6,449.49 and 1,221.74 is: 1,832.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,299.50 : 6,449.49 = 1,221.74 : x
  2. Step 2: Convert to fraction form
    4,299.50/6,449.49 = 1,221.74/x
  3. Step 3: Cross multiply
    4,299.50x = 6,449.49 × 1,221.74
  4. Step 4: Simplify right side
    4,299.50x = 7,879,599.91
  5. Step 5: Solve for x
    x = 7,879,599.91/4,299.50
  6. Step 6: Final answer
    x = 1,832.68

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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.