Home / 4,187.25-5,779.13-2,790.81

Finding the Fourth Proportional to 4,187.25, 5,779.13 and 2,790.81

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Solution

The fourth proportional to 4,187.25, 5,779.13 and 2,790.81 is: 3,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.25 : 5,779.13 = 2,790.81 : x
  2. Step 2: Convert to fraction form
    4,187.25/5,779.13 = 2,790.81/x
  3. Step 3: Cross multiply
    4,187.25x = 5,779.13 × 2,790.81
  4. Step 4: Simplify right side
    4,187.25x = 16,128,439.84
  5. Step 5: Solve for x
    x = 16,128,439.84/4,187.25
  6. Step 6: Final answer
    x = 3,851.80

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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.