Home / 5,212.13-7,818.24-1,316.54

Finding the Fourth Proportional to 5,212.13, 7,818.24 and 1,316.54

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Solution

The fourth proportional to 5,212.13, 7,818.24 and 1,316.54 is: 1,974.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.13 : 7,818.24 = 1,316.54 : x
  2. Step 2: Convert to fraction form
    5,212.13/7,818.24 = 1,316.54/x
  3. Step 3: Cross multiply
    5,212.13x = 7,818.24 × 1,316.54
  4. Step 4: Simplify right side
    5,212.13x = 10,292,986.60
  5. Step 5: Solve for x
    x = 10,292,986.60/5,212.13
  6. Step 6: Final answer
    x = 1,974.82

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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.