Home / 2,790.36-3,851.66-1,611.92

Finding the Fourth Proportional to 2,790.36, 3,851.66 and 1,611.92

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Solution

The fourth proportional to 2,790.36, 3,851.66 and 1,611.92 is: 2,225.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.36 : 3,851.66 = 1,611.92 : x
  2. Step 2: Convert to fraction form
    2,790.36/3,851.66 = 1,611.92/x
  3. Step 3: Cross multiply
    2,790.36x = 3,851.66 × 1,611.92
  4. Step 4: Simplify right side
    2,790.36x = 6,208,567.79
  5. Step 5: Solve for x
    x = 6,208,567.79/2,790.36
  6. Step 6: Final answer
    x = 2,225.01

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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.