Home / 3,997.49-5,518.08-2,670.71

Finding the Fourth Proportional to 3,997.49, 5,518.08 and 2,670.71

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Solution

The fourth proportional to 3,997.49, 5,518.08 and 2,670.71 is: 3,686.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.49 : 5,518.08 = 2,670.71 : x
  2. Step 2: Convert to fraction form
    3,997.49/5,518.08 = 2,670.71/x
  3. Step 3: Cross multiply
    3,997.49x = 5,518.08 × 2,670.71
  4. Step 4: Simplify right side
    3,997.49x = 14,737,163.85
  5. Step 5: Solve for x
    x = 14,737,163.85/3,997.49
  6. Step 6: Final answer
    x = 3,686.61

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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.