Home / 5,133.78-7,084.59-2,896.38

Finding the Fourth Proportional to 5,133.78, 7,084.59 and 2,896.38

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Solution

The fourth proportional to 5,133.78, 7,084.59 and 2,896.38 is: 3,996.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.78 : 7,084.59 = 2,896.38 : x
  2. Step 2: Convert to fraction form
    5,133.78/7,084.59 = 2,896.38/x
  3. Step 3: Cross multiply
    5,133.78x = 7,084.59 × 2,896.38
  4. Step 4: Simplify right side
    5,133.78x = 20,519,681.99
  5. Step 5: Solve for x
    x = 20,519,681.99/5,133.78
  6. Step 6: Final answer
    x = 3,996.99

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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.