Home / 3,985.35-5,499.75-2,216.94

Finding the Fourth Proportional to 3,985.35, 5,499.75 and 2,216.94

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Solution

The fourth proportional to 3,985.35, 5,499.75 and 2,216.94 is: 3,059.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.35 : 5,499.75 = 2,216.94 : x
  2. Step 2: Convert to fraction form
    3,985.35/5,499.75 = 2,216.94/x
  3. Step 3: Cross multiply
    3,985.35x = 5,499.75 × 2,216.94
  4. Step 4: Simplify right side
    3,985.35x = 12,192,615.77
  5. Step 5: Solve for x
    x = 12,192,615.77/3,985.35
  6. Step 6: Final answer
    x = 3,059.36

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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.