Home / 3,199.33-4,782.11-2,779.57

Finding the Fourth Proportional to 3,199.33, 4,782.11 and 2,779.57

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Solution

The fourth proportional to 3,199.33, 4,782.11 and 2,779.57 is: 4,154.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199.33 : 4,782.11 = 2,779.57 : x
  2. Step 2: Convert to fraction form
    3,199.33/4,782.11 = 2,779.57/x
  3. Step 3: Cross multiply
    3,199.33x = 4,782.11 × 2,779.57
  4. Step 4: Simplify right side
    3,199.33x = 13,292,209.49
  5. Step 5: Solve for x
    x = 13,292,209.49/3,199.33
  6. Step 6: Final answer
    x = 4,154.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.