Home / 3,887.02-5,364.06-2,118.61

Finding the Fourth Proportional to 3,887.02, 5,364.06 and 2,118.61

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Solution

The fourth proportional to 3,887.02, 5,364.06 and 2,118.61 is: 2,923.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.02 : 5,364.06 = 2,118.61 : x
  2. Step 2: Convert to fraction form
    3,887.02/5,364.06 = 2,118.61/x
  3. Step 3: Cross multiply
    3,887.02x = 5,364.06 × 2,118.61
  4. Step 4: Simplify right side
    3,887.02x = 11,364,351.16
  5. Step 5: Solve for x
    x = 11,364,351.16/3,887.02
  6. Step 6: Final answer
    x = 2,923.67

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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.