Home / 2,782.36-3,839.28-1,663.06

Finding the Fourth Proportional to 2,782.36, 3,839.28 and 1,663.06

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Solution

The fourth proportional to 2,782.36, 3,839.28 and 1,663.06 is: 2,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.36 : 3,839.28 = 1,663.06 : x
  2. Step 2: Convert to fraction form
    2,782.36/3,839.28 = 1,663.06/x
  3. Step 3: Cross multiply
    2,782.36x = 3,839.28 × 1,663.06
  4. Step 4: Simplify right side
    2,782.36x = 6,384,953.00
  5. Step 5: Solve for x
    x = 6,384,953.00/2,782.36
  6. Step 6: Final answer
    x = 2,294.80

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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.