Home / 5,179.75-7,762.68-2,543.23

Finding the Fourth Proportional to 5,179.75, 7,762.68 and 2,543.23

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Solution

The fourth proportional to 5,179.75, 7,762.68 and 2,543.23 is: 3,811.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.75 : 7,762.68 = 2,543.23 : x
  2. Step 2: Convert to fraction form
    5,179.75/7,762.68 = 2,543.23/x
  3. Step 3: Cross multiply
    5,179.75x = 7,762.68 × 2,543.23
  4. Step 4: Simplify right side
    5,179.75x = 19,742,280.66
  5. Step 5: Solve for x
    x = 19,742,280.66/5,179.75
  6. Step 6: Final answer
    x = 3,811.44

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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.