Home / 4,220.54-6,330.81-2,811.98

Finding the Fourth Proportional to 4,220.54, 6,330.81 and 2,811.98

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Solution

The fourth proportional to 4,220.54, 6,330.81 and 2,811.98 is: 4,217.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.54 : 6,330.81 = 2,811.98 : x
  2. Step 2: Convert to fraction form
    4,220.54/6,330.81 = 2,811.98/x
  3. Step 3: Cross multiply
    4,220.54x = 6,330.81 × 2,811.98
  4. Step 4: Simplify right side
    4,220.54x = 17,802,111.10
  5. Step 5: Solve for x
    x = 17,802,111.10/4,220.54
  6. Step 6: Final answer
    x = 4,217.97

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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.