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Finding the Fourth Proportional to 3,384.70, 5,077.04 and 1,435.54

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Solution

The fourth proportional to 3,384.70, 5,077.04 and 1,435.54 is: 2,153.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,384.70 : 5,077.04 = 1,435.54 : x
  2. Step 2: Convert to fraction form
    3,384.70/5,077.04 = 1,435.54/x
  3. Step 3: Cross multiply
    3,384.70x = 5,077.04 × 1,435.54
  4. Step 4: Simplify right side
    3,384.70x = 7,288,294.00
  5. Step 5: Solve for x
    x = 7,288,294.00/3,384.70
  6. Step 6: Final answer
    x = 2,153.31

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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.