Home / 5,126.64-7,075.44-2,889

Finding the Fourth Proportional to 5,126.64, 7,075.44 and 2,889

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Solution

The fourth proportional to 5,126.64, 7,075.44 and 2,889 is: 3,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.64 : 7,075.44 = 2,889 : x
  2. Step 2: Convert to fraction form
    5,126.64/7,075.44 = 2,889/x
  3. Step 3: Cross multiply
    5,126.64x = 7,075.44 × 2,889
  4. Step 4: Simplify right side
    5,126.64x = 20,440,946.16
  5. Step 5: Solve for x
    x = 20,440,946.16/5,126.64
  6. Step 6: Final answer
    x = 3,987.20

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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.