Home / 2,779.11-3,835.40-1,731.33

Finding the Fourth Proportional to 2,779.11, 3,835.40 and 1,731.33

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Solution

The fourth proportional to 2,779.11, 3,835.40 and 1,731.33 is: 2,389.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.11 : 3,835.40 = 1,731.33 : x
  2. Step 2: Convert to fraction form
    2,779.11/3,835.40 = 1,731.33/x
  3. Step 3: Cross multiply
    2,779.11x = 3,835.40 × 1,731.33
  4. Step 4: Simplify right side
    2,779.11x = 6,640,334.43
  5. Step 5: Solve for x
    x = 6,640,334.43/2,779.11
  6. Step 6: Final answer
    x = 2,389.37

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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.