Home / 5,170.36-7,137.30-3,075.16

Finding the Fourth Proportional to 5,170.36, 7,137.30 and 3,075.16

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Solution

The fourth proportional to 5,170.36, 7,137.30 and 3,075.16 is: 4,245.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.36 : 7,137.30 = 3,075.16 : x
  2. Step 2: Convert to fraction form
    5,170.36/7,137.30 = 3,075.16/x
  3. Step 3: Cross multiply
    5,170.36x = 7,137.30 × 3,075.16
  4. Step 4: Simplify right side
    5,170.36x = 21,948,339.47
  5. Step 5: Solve for x
    x = 21,948,339.47/5,170.36
  6. Step 6: Final answer
    x = 4,245.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.