Home / 4,257.81-6,387.39-1,335.42

Finding the Fourth Proportional to 4,257.81, 6,387.39 and 1,335.42

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Solution

The fourth proportional to 4,257.81, 6,387.39 and 1,335.42 is: 2,003.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,257.81 : 6,387.39 = 1,335.42 : x
  2. Step 2: Convert to fraction form
    4,257.81/6,387.39 = 1,335.42/x
  3. Step 3: Cross multiply
    4,257.81x = 6,387.39 × 1,335.42
  4. Step 4: Simplify right side
    4,257.81x = 8,529,848.35
  5. Step 5: Solve for x
    x = 8,529,848.35/4,257.81
  6. Step 6: Final answer
    x = 2,003.34

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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.