Home / 5,256.14-7,879.34-1,971.38

Finding the Fourth Proportional to 5,256.14, 7,879.34 and 1,971.38

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Solution

The fourth proportional to 5,256.14, 7,879.34 and 1,971.38 is: 2,955.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256.14 : 7,879.34 = 1,971.38 : x
  2. Step 2: Convert to fraction form
    5,256.14/7,879.34 = 1,971.38/x
  3. Step 3: Cross multiply
    5,256.14x = 7,879.34 × 1,971.38
  4. Step 4: Simplify right side
    5,256.14x = 15,533,197.92
  5. Step 5: Solve for x
    x = 15,533,197.92/5,256.14
  6. Step 6: Final answer
    x = 2,955.25

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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.