Home / 3,238.41-4,857.90-1,389.18

Finding the Fourth Proportional to 3,238.41, 4,857.90 and 1,389.18

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Solution

The fourth proportional to 3,238.41, 4,857.90 and 1,389.18 is: 2,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.41 : 4,857.90 = 1,389.18 : x
  2. Step 2: Convert to fraction form
    3,238.41/4,857.90 = 1,389.18/x
  3. Step 3: Cross multiply
    3,238.41x = 4,857.90 × 1,389.18
  4. Step 4: Simplify right side
    3,238.41x = 6,748,497.52
  5. Step 5: Solve for x
    x = 6,748,497.52/3,238.41
  6. Step 6: Final answer
    x = 2,083.89

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1.5x scale

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.