Home / 4,281.56-6,422.97-1,319.39

Finding the Fourth Proportional to 4,281.56, 6,422.97 and 1,319.39

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Solution

The fourth proportional to 4,281.56, 6,422.97 and 1,319.39 is: 1,979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,281.56 : 6,422.97 = 1,319.39 : x
  2. Step 2: Convert to fraction form
    4,281.56/6,422.97 = 1,319.39/x
  3. Step 3: Cross multiply
    4,281.56x = 6,422.97 × 1,319.39
  4. Step 4: Simplify right side
    4,281.56x = 8,474,370.27
  5. Step 5: Solve for x
    x = 8,474,370.27/4,281.56
  6. Step 6: Final answer
    x = 1,979.27

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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.