Home / 3,480.35-5,220.45-2,317.80

Finding the Fourth Proportional to 3,480.35, 5,220.45 and 2,317.80

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Solution

The fourth proportional to 3,480.35, 5,220.45 and 2,317.80 is: 3,476.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.35 : 5,220.45 = 2,317.80 : x
  2. Step 2: Convert to fraction form
    3,480.35/5,220.45 = 2,317.80/x
  3. Step 3: Cross multiply
    3,480.35x = 5,220.45 × 2,317.80
  4. Step 4: Simplify right side
    3,480.35x = 12,099,959.01
  5. Step 5: Solve for x
    x = 12,099,959.01/3,480.35
  6. Step 6: Final answer
    x = 3,476.66

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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.