Home / 3,962.60-5,939.79-1,621.60

Finding the Fourth Proportional to 3,962.60, 5,939.79 and 1,621.60

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Solution

The fourth proportional to 3,962.60, 5,939.79 and 1,621.60 is: 2,430.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,962.60 : 5,939.79 = 1,621.60 : x
  2. Step 2: Convert to fraction form
    3,962.60/5,939.79 = 1,621.60/x
  3. Step 3: Cross multiply
    3,962.60x = 5,939.79 × 1,621.60
  4. Step 4: Simplify right side
    3,962.60x = 9,631,963.46
  5. Step 5: Solve for x
    x = 9,631,963.46/3,962.60
  6. Step 6: Final answer
    x = 2,430.72

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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.