Home / 3,980.48-5,493.36-2,212.52

Finding the Fourth Proportional to 3,980.48, 5,493.36 and 2,212.52

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Solution

The fourth proportional to 3,980.48, 5,493.36 and 2,212.52 is: 3,053.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.48 : 5,493.36 = 2,212.52 : x
  2. Step 2: Convert to fraction form
    3,980.48/5,493.36 = 2,212.52/x
  3. Step 3: Cross multiply
    3,980.48x = 5,493.36 × 2,212.52
  4. Step 4: Simplify right side
    3,980.48x = 12,154,168.87
  5. Step 5: Solve for x
    x = 12,154,168.87/3,980.48
  6. Step 6: Final answer
    x = 3,053.44

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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.