Home / 3,983.89-5,496.65-2,389.54

Finding the Fourth Proportional to 3,983.89, 5,496.65 and 2,389.54

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Solution

The fourth proportional to 3,983.89, 5,496.65 and 2,389.54 is: 3,296.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.89 : 5,496.65 = 2,389.54 : x
  2. Step 2: Convert to fraction form
    3,983.89/5,496.65 = 2,389.54/x
  3. Step 3: Cross multiply
    3,983.89x = 5,496.65 × 2,389.54
  4. Step 4: Simplify right side
    3,983.89x = 13,134,437.56
  5. Step 5: Solve for x
    x = 13,134,437.56/3,983.89
  6. Step 6: Final answer
    x = 3,296.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.