Home / 5,185.78-7,779.66-2,844.50

Finding the Fourth Proportional to 5,185.78, 7,779.66 and 2,844.50

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Solution

The fourth proportional to 5,185.78, 7,779.66 and 2,844.50 is: 4,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.78 : 7,779.66 = 2,844.50 : x
  2. Step 2: Convert to fraction form
    5,185.78/7,779.66 = 2,844.50/x
  3. Step 3: Cross multiply
    5,185.78x = 7,779.66 × 2,844.50
  4. Step 4: Simplify right side
    5,185.78x = 22,129,242.87
  5. Step 5: Solve for x
    x = 22,129,242.87/5,185.78
  6. Step 6: Final answer
    x = 4,267.30

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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.