Home / 1,777.37-2,669.36-1,085.22

Finding the Fourth Proportional to 1,777.37, 2,669.36 and 1,085.22

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Solution

The fourth proportional to 1,777.37, 2,669.36 and 1,085.22 is: 1,629.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.37 : 2,669.36 = 1,085.22 : x
  2. Step 2: Convert to fraction form
    1,777.37/2,669.36 = 1,085.22/x
  3. Step 3: Cross multiply
    1,777.37x = 2,669.36 × 1,085.22
  4. Step 4: Simplify right side
    1,777.37x = 2,896,837.43
  5. Step 5: Solve for x
    x = 2,896,837.43/1,777.37
  6. Step 6: Final answer
    x = 1,629.85

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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.