Home / 5,178.36-7,779.48-2,992.44

Finding the Fourth Proportional to 5,178.36, 7,779.48 and 2,992.44

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Solution

The fourth proportional to 5,178.36, 7,779.48 and 2,992.44 is: 4,495.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.36 : 7,779.48 = 2,992.44 : x
  2. Step 2: Convert to fraction form
    5,178.36/7,779.48 = 2,992.44/x
  3. Step 3: Cross multiply
    5,178.36x = 7,779.48 × 2,992.44
  4. Step 4: Simplify right side
    5,178.36x = 23,279,627.13
  5. Step 5: Solve for x
    x = 23,279,627.13/5,178.36
  6. Step 6: Final answer
    x = 4,495.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.