Home / 2,135.28-3,204.53-1,440.30

Finding the Fourth Proportional to 2,135.28, 3,204.53 and 1,440.30

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Solution

The fourth proportional to 2,135.28, 3,204.53 and 1,440.30 is: 2,161.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.28 : 3,204.53 = 1,440.30 : x
  2. Step 2: Convert to fraction form
    2,135.28/3,204.53 = 1,440.30/x
  3. Step 3: Cross multiply
    2,135.28x = 3,204.53 × 1,440.30
  4. Step 4: Simplify right side
    2,135.28x = 4,615,472.14
  5. Step 5: Solve for x
    x = 4,615,472.14/2,135.28
  6. Step 6: Final answer
    x = 2,161.54

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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.