Home / 3,819.08-5,272.08-2,779.04

Finding the Fourth Proportional to 3,819.08, 5,272.08 and 2,779.04

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Solution

The fourth proportional to 3,819.08, 5,272.08 and 2,779.04 is: 3,836.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.08 : 5,272.08 = 2,779.04 : x
  2. Step 2: Convert to fraction form
    3,819.08/5,272.08 = 2,779.04/x
  3. Step 3: Cross multiply
    3,819.08x = 5,272.08 × 2,779.04
  4. Step 4: Simplify right side
    3,819.08x = 14,651,321.20
  5. Step 5: Solve for x
    x = 14,651,321.20/3,819.08
  6. Step 6: Final answer
    x = 3,836.35

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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.