Home / 2,782.55-3,839.65-1,663.26

Finding the Fourth Proportional to 2,782.55, 3,839.65 and 1,663.26

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Solution

The fourth proportional to 2,782.55, 3,839.65 and 1,663.26 is: 2,295.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.55 : 3,839.65 = 1,663.26 : x
  2. Step 2: Convert to fraction form
    2,782.55/3,839.65 = 1,663.26/x
  3. Step 3: Cross multiply
    2,782.55x = 3,839.65 × 1,663.26
  4. Step 4: Simplify right side
    2,782.55x = 6,386,336.26
  5. Step 5: Solve for x
    x = 6,386,336.26/2,782.55
  6. Step 6: Final answer
    x = 2,295.14

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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.