Home / 3,779.43-5,215.64-2,208.30

Finding the Fourth Proportional to 3,779.43, 5,215.64 and 2,208.30

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Solution

The fourth proportional to 3,779.43, 5,215.64 and 2,208.30 is: 3,047.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.43 : 5,215.64 = 2,208.30 : x
  2. Step 2: Convert to fraction form
    3,779.43/5,215.64 = 2,208.30/x
  3. Step 3: Cross multiply
    3,779.43x = 5,215.64 × 2,208.30
  4. Step 4: Simplify right side
    3,779.43x = 11,517,686.77
  5. Step 5: Solve for x
    x = 11,517,686.77/3,779.43
  6. Step 6: Final answer
    x = 3,047.47

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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.