Home / 3,217.35-4,439.75-1,800.80

Finding the Fourth Proportional to 3,217.35, 4,439.75 and 1,800.80

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Solution

The fourth proportional to 3,217.35, 4,439.75 and 1,800.80 is: 2,484.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.35 : 4,439.75 = 1,800.80 : x
  2. Step 2: Convert to fraction form
    3,217.35/4,439.75 = 1,800.80/x
  3. Step 3: Cross multiply
    3,217.35x = 4,439.75 × 1,800.80
  4. Step 4: Simplify right side
    3,217.35x = 7,995,070.60
  5. Step 5: Solve for x
    x = 7,995,070.60/3,217.35
  6. Step 6: Final answer
    x = 2,484.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.