Home / 5,163.81-7,126.02-2,805.93

Finding the Fourth Proportional to 5,163.81, 7,126.02 and 2,805.93

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Solution

The fourth proportional to 5,163.81, 7,126.02 and 2,805.93 is: 3,872.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.81 : 7,126.02 = 2,805.93 : x
  2. Step 2: Convert to fraction form
    5,163.81/7,126.02 = 2,805.93/x
  3. Step 3: Cross multiply
    5,163.81x = 7,126.02 × 2,805.93
  4. Step 4: Simplify right side
    5,163.81x = 19,995,113.30
  5. Step 5: Solve for x
    x = 19,995,113.30/5,163.81
  6. Step 6: Final answer
    x = 3,872.16

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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.