Home / 3,754.78-5,632.55-1,289.28

Finding the Fourth Proportional to 3,754.78, 5,632.55 and 1,289.28

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Solution

The fourth proportional to 3,754.78, 5,632.55 and 1,289.28 is: 1,934.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.78 : 5,632.55 = 1,289.28 : x
  2. Step 2: Convert to fraction form
    3,754.78/5,632.55 = 1,289.28/x
  3. Step 3: Cross multiply
    3,754.78x = 5,632.55 × 1,289.28
  4. Step 4: Simplify right side
    3,754.78x = 7,261,934.06
  5. Step 5: Solve for x
    x = 7,261,934.06/3,754.78
  6. Step 6: Final answer
    x = 1,934.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.