Home / 3,429.76-5,142.36-1,764.96

Finding the Fourth Proportional to 3,429.76, 5,142.36 and 1,764.96

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Solution

The fourth proportional to 3,429.76, 5,142.36 and 1,764.96 is: 2,646.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.76 : 5,142.36 = 1,764.96 : x
  2. Step 2: Convert to fraction form
    3,429.76/5,142.36 = 1,764.96/x
  3. Step 3: Cross multiply
    3,429.76x = 5,142.36 × 1,764.96
  4. Step 4: Simplify right side
    3,429.76x = 9,076,059.71
  5. Step 5: Solve for x
    x = 9,076,059.71/3,429.76
  6. Step 6: Final answer
    x = 2,646.27

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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.