Home / 3,239.39-4,857.98-1,389.35

Finding the Fourth Proportional to 3,239.39, 4,857.98 and 1,389.35

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Solution

The fourth proportional to 3,239.39, 4,857.98 and 1,389.35 is: 2,083.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.39 : 4,857.98 = 1,389.35 : x
  2. Step 2: Convert to fraction form
    3,239.39/4,857.98 = 1,389.35/x
  3. Step 3: Cross multiply
    3,239.39x = 4,857.98 × 1,389.35
  4. Step 4: Simplify right side
    3,239.39x = 6,749,439.71
  5. Step 5: Solve for x
    x = 6,749,439.71/3,239.39
  6. Step 6: Final answer
    x = 2,083.55

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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.