Home / 2,782.01-3,839.82-1,663.63

Finding the Fourth Proportional to 2,782.01, 3,839.82 and 1,663.63

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Solution

The fourth proportional to 2,782.01, 3,839.82 and 1,663.63 is: 2,296.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.01 : 3,839.82 = 1,663.63 : x
  2. Step 2: Convert to fraction form
    2,782.01/3,839.82 = 1,663.63/x
  3. Step 3: Cross multiply
    2,782.01x = 3,839.82 × 1,663.63
  4. Step 4: Simplify right side
    2,782.01x = 6,388,039.75
  5. Step 5: Solve for x
    x = 6,388,039.75/2,782.01
  6. Step 6: Final answer
    x = 2,296.20

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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.