Home / 2,779.24-3,832.44-2,405.08

Finding the Fourth Proportional to 2,779.24, 3,832.44 and 2,405.08

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Solution

The fourth proportional to 2,779.24, 3,832.44 and 2,405.08 is: 3,316.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.24 : 3,832.44 = 2,405.08 : x
  2. Step 2: Convert to fraction form
    2,779.24/3,832.44 = 2,405.08/x
  3. Step 3: Cross multiply
    2,779.24x = 3,832.44 × 2,405.08
  4. Step 4: Simplify right side
    2,779.24x = 9,217,324.80
  5. Step 5: Solve for x
    x = 9,217,324.80/2,779.24
  6. Step 6: Final answer
    x = 3,316.49

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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.