Home / 2,790.32-3,850.36-1,611.77

Finding the Fourth Proportional to 2,790.32, 3,850.36 and 1,611.77

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Solution

The fourth proportional to 2,790.32, 3,850.36 and 1,611.77 is: 2,224.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.32 : 3,850.36 = 1,611.77 : x
  2. Step 2: Convert to fraction form
    2,790.32/3,850.36 = 1,611.77/x
  3. Step 3: Cross multiply
    2,790.32x = 3,850.36 × 1,611.77
  4. Step 4: Simplify right side
    2,790.32x = 6,205,871.46
  5. Step 5: Solve for x
    x = 6,205,871.46/2,790.32
  6. Step 6: Final answer
    x = 2,224.08

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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.