Home / 2,165.49-3,245.82-1,777.19

Finding the Fourth Proportional to 2,165.49, 3,245.82 and 1,777.19

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Solution

The fourth proportional to 2,165.49, 3,245.82 and 1,777.19 is: 2,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165.49 : 3,245.82 = 1,777.19 : x
  2. Step 2: Convert to fraction form
    2,165.49/3,245.82 = 1,777.19/x
  3. Step 3: Cross multiply
    2,165.49x = 3,245.82 × 1,777.19
  4. Step 4: Simplify right side
    2,165.49x = 5,768,422.62
  5. Step 5: Solve for x
    x = 5,768,422.62/2,165.49
  6. Step 6: Final answer
    x = 2,663.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.