Home / 3,580.28-5,369.61-1,271.78

Finding the Fourth Proportional to 3,580.28, 5,369.61 and 1,271.78

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Solution

The fourth proportional to 3,580.28, 5,369.61 and 1,271.78 is: 1,907.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.28 : 5,369.61 = 1,271.78 : x
  2. Step 2: Convert to fraction form
    3,580.28/5,369.61 = 1,271.78/x
  3. Step 3: Cross multiply
    3,580.28x = 5,369.61 × 1,271.78
  4. Step 4: Simplify right side
    3,580.28x = 6,828,962.61
  5. Step 5: Solve for x
    x = 6,828,962.61/3,580.28
  6. Step 6: Final answer
    x = 1,907.38

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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.