Home / 5,279.18-7,918.36-1,383.48

Finding the Fourth Proportional to 5,279.18, 7,918.36 and 1,383.48

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Solution

The fourth proportional to 5,279.18, 7,918.36 and 1,383.48 is: 2,075.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.18 : 7,918.36 = 1,383.48 : x
  2. Step 2: Convert to fraction form
    5,279.18/7,918.36 = 1,383.48/x
  3. Step 3: Cross multiply
    5,279.18x = 7,918.36 × 1,383.48
  4. Step 4: Simplify right side
    5,279.18x = 10,954,889.23
  5. Step 5: Solve for x
    x = 10,954,889.23/5,279.18
  6. Step 6: Final answer
    x = 2,075.11

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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.