Home / 3,111.75-4,669.41-1,650.90

Finding the Fourth Proportional to 3,111.75, 4,669.41 and 1,650.90

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Solution

The fourth proportional to 3,111.75, 4,669.41 and 1,650.90 is: 2,477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.75 : 4,669.41 = 1,650.90 : x
  2. Step 2: Convert to fraction form
    3,111.75/4,669.41 = 1,650.90/x
  3. Step 3: Cross multiply
    3,111.75x = 4,669.41 × 1,650.90
  4. Step 4: Simplify right side
    3,111.75x = 7,708,728.97
  5. Step 5: Solve for x
    x = 7,708,728.97/3,111.75
  6. Step 6: Final answer
    x = 2,477.30

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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.