Home / 3,983.36-5,495.16-2,389.28

Finding the Fourth Proportional to 3,983.36, 5,495.16 and 2,389.28

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Solution

The fourth proportional to 3,983.36, 5,495.16 and 2,389.28 is: 3,296.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.36 : 5,495.16 = 2,389.28 : x
  2. Step 2: Convert to fraction form
    3,983.36/5,495.16 = 2,389.28/x
  3. Step 3: Cross multiply
    3,983.36x = 5,495.16 × 2,389.28
  4. Step 4: Simplify right side
    3,983.36x = 13,129,475.88
  5. Step 5: Solve for x
    x = 13,129,475.88/3,983.36
  6. Step 6: Final answer
    x = 3,296.08

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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.