Home / 4,261.92-6,390.63-1,339.44

Finding the Fourth Proportional to 4,261.92, 6,390.63 and 1,339.44

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Solution

The fourth proportional to 4,261.92, 6,390.63 and 1,339.44 is: 2,008.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.92 : 6,390.63 = 1,339.44 : x
  2. Step 2: Convert to fraction form
    4,261.92/6,390.63 = 1,339.44/x
  3. Step 3: Cross multiply
    4,261.92x = 6,390.63 × 1,339.44
  4. Step 4: Simplify right side
    4,261.92x = 8,559,865.45
  5. Step 5: Solve for x
    x = 8,559,865.45/4,261.92
  6. Step 6: Final answer
    x = 2,008.45

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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.