Home / 5,219.10-7,828.38-1,323.54

Finding the Fourth Proportional to 5,219.10, 7,828.38 and 1,323.54

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Solution

The fourth proportional to 5,219.10, 7,828.38 and 1,323.54 is: 1,985.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.10 : 7,828.38 = 1,323.54 : x
  2. Step 2: Convert to fraction form
    5,219.10/7,828.38 = 1,323.54/x
  3. Step 3: Cross multiply
    5,219.10x = 7,828.38 × 1,323.54
  4. Step 4: Simplify right side
    5,219.10x = 10,361,174.07
  5. Step 5: Solve for x
    x = 10,361,174.07/5,219.10
  6. Step 6: Final answer
    x = 1,985.24

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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.