Home / 3,985.02-5,499.67-2,216.97

Finding the Fourth Proportional to 3,985.02, 5,499.67 and 2,216.97

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Solution

The fourth proportional to 3,985.02, 5,499.67 and 2,216.97 is: 3,059.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.02 : 5,499.67 = 2,216.97 : x
  2. Step 2: Convert to fraction form
    3,985.02/5,499.67 = 2,216.97/x
  3. Step 3: Cross multiply
    3,985.02x = 5,499.67 × 2,216.97
  4. Step 4: Simplify right side
    3,985.02x = 12,192,603.40
  5. Step 5: Solve for x
    x = 12,192,603.40/3,985.02
  6. Step 6: Final answer
    x = 3,059.61

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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.