Home / 5,126.76-7,075.62-2,889

Finding the Fourth Proportional to 5,126.76, 7,075.62 and 2,889

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Solution

The fourth proportional to 5,126.76, 7,075.62 and 2,889 is: 3,987.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.76 : 7,075.62 = 2,889 : x
  2. Step 2: Convert to fraction form
    5,126.76/7,075.62 = 2,889/x
  3. Step 3: Cross multiply
    5,126.76x = 7,075.62 × 2,889
  4. Step 4: Simplify right side
    5,126.76x = 20,441,466.18
  5. Step 5: Solve for x
    x = 20,441,466.18/5,126.76
  6. Step 6: Final answer
    x = 3,987.21

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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.