Home / 4,261.29-6,392.12-1,920.87

Finding the Fourth Proportional to 4,261.29, 6,392.12 and 1,920.87

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Solution

The fourth proportional to 4,261.29, 6,392.12 and 1,920.87 is: 2,881.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.29 : 6,392.12 = 1,920.87 : x
  2. Step 2: Convert to fraction form
    4,261.29/6,392.12 = 1,920.87/x
  3. Step 3: Cross multiply
    4,261.29x = 6,392.12 × 1,920.87
  4. Step 4: Simplify right side
    4,261.29x = 12,278,421.94
  5. Step 5: Solve for x
    x = 12,278,421.94/4,261.29
  6. Step 6: Final answer
    x = 2,881.39

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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.