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Finding the Fourth Proportional to 2,220, 3,337.20 and 2,059.68

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Solution

The fourth proportional to 2,220, 3,337.20 and 2,059.68 is: 3,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220 : 3,337.20 = 2,059.68 : x
  2. Step 2: Convert to fraction form
    2,220/3,337.20 = 2,059.68/x
  3. Step 3: Cross multiply
    2,220x = 3,337.20 × 2,059.68
  4. Step 4: Simplify right side
    2,220x = 6,873,564.10
  5. Step 5: Solve for x
    x = 6,873,564.10/2,220
  6. Step 6: Final answer
    x = 3,096.20

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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.