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Finding the Fourth Proportional to 3,321.56, 4,980.74 and 1,935.29

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Solution

The fourth proportional to 3,321.56, 4,980.74 and 1,935.29 is: 2,902.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.56 : 4,980.74 = 1,935.29 : x
  2. Step 2: Convert to fraction form
    3,321.56/4,980.74 = 1,935.29/x
  3. Step 3: Cross multiply
    3,321.56x = 4,980.74 × 1,935.29
  4. Step 4: Simplify right side
    3,321.56x = 9,639,176.31
  5. Step 5: Solve for x
    x = 9,639,176.31/3,321.56
  6. Step 6: Final answer
    x = 2,902.00

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1.5x scale

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.