Home / 2,650.98-3,658.55-1,986.66

Finding the Fourth Proportional to 2,650.98, 3,658.55 and 1,986.66

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Solution

The fourth proportional to 2,650.98, 3,658.55 and 1,986.66 is: 2,741.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650.98 : 3,658.55 = 1,986.66 : x
  2. Step 2: Convert to fraction form
    2,650.98/3,658.55 = 1,986.66/x
  3. Step 3: Cross multiply
    2,650.98x = 3,658.55 × 1,986.66
  4. Step 4: Simplify right side
    2,650.98x = 7,268,285.01
  5. Step 5: Solve for x
    x = 7,268,285.01/2,650.98
  6. Step 6: Final answer
    x = 2,741.74

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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.