Home / 5,126.96-7,075.44-2,858.45

Finding the Fourth Proportional to 5,126.96, 7,075.44 and 2,858.45

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Solution

The fourth proportional to 5,126.96, 7,075.44 and 2,858.45 is: 3,944.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.96 : 7,075.44 = 2,858.45 : x
  2. Step 2: Convert to fraction form
    5,126.96/7,075.44 = 2,858.45/x
  3. Step 3: Cross multiply
    5,126.96x = 7,075.44 × 2,858.45
  4. Step 4: Simplify right side
    5,126.96x = 20,224,791.47
  5. Step 5: Solve for x
    x = 20,224,791.47/5,126.96
  6. Step 6: Final answer
    x = 3,944.79

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1.5x scale

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.