Home / 4,989.15-7,484.54-2,216.79

Finding the Fourth Proportional to 4,989.15, 7,484.54 and 2,216.79

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Solution

The fourth proportional to 4,989.15, 7,484.54 and 2,216.79 is: 3,325.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.15 : 7,484.54 = 2,216.79 : x
  2. Step 2: Convert to fraction form
    4,989.15/7,484.54 = 2,216.79/x
  3. Step 3: Cross multiply
    4,989.15x = 7,484.54 × 2,216.79
  4. Step 4: Simplify right side
    4,989.15x = 16,591,642.34
  5. Step 5: Solve for x
    x = 16,591,642.34/4,989.15
  6. Step 6: Final answer
    x = 3,325.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.