Home / 3,325.56-4,990.28-1,247.02

Finding the Fourth Proportional to 3,325.56, 4,990.28 and 1,247.02

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Solution

The fourth proportional to 3,325.56, 4,990.28 and 1,247.02 is: 1,871.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,325.56 : 4,990.28 = 1,247.02 : x
  2. Step 2: Convert to fraction form
    3,325.56/4,990.28 = 1,247.02/x
  3. Step 3: Cross multiply
    3,325.56x = 4,990.28 × 1,247.02
  4. Step 4: Simplify right side
    3,325.56x = 6,222,978.97
  5. Step 5: Solve for x
    x = 6,222,978.97/3,325.56
  6. Step 6: Final answer
    x = 1,871.26

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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.