Home / 3,429.18-5,140.36-1,347.88

Finding the Fourth Proportional to 3,429.18, 5,140.36 and 1,347.88

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Solution

The fourth proportional to 3,429.18, 5,140.36 and 1,347.88 is: 2,020.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.18 : 5,140.36 = 1,347.88 : x
  2. Step 2: Convert to fraction form
    3,429.18/5,140.36 = 1,347.88/x
  3. Step 3: Cross multiply
    3,429.18x = 5,140.36 × 1,347.88
  4. Step 4: Simplify right side
    3,429.18x = 6,928,588.44
  5. Step 5: Solve for x
    x = 6,928,588.44/3,429.18
  6. Step 6: Final answer
    x = 2,020.48

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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.