Home / 4,138.30-6,205.20-2,053.72

Finding the Fourth Proportional to 4,138.30, 6,205.20 and 2,053.72

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Solution

The fourth proportional to 4,138.30, 6,205.20 and 2,053.72 is: 3,079.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.30 : 6,205.20 = 2,053.72 : x
  2. Step 2: Convert to fraction form
    4,138.30/6,205.20 = 2,053.72/x
  3. Step 3: Cross multiply
    4,138.30x = 6,205.20 × 2,053.72
  4. Step 4: Simplify right side
    4,138.30x = 12,743,743.34
  5. Step 5: Solve for x
    x = 12,743,743.34/4,138.30
  6. Step 6: Final answer
    x = 3,079.46

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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.