Home / 3,328.40-4,991.16-1,018.64

Finding the Fourth Proportional to 3,328.40, 4,991.16 and 1,018.64

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Solution

The fourth proportional to 3,328.40, 4,991.16 and 1,018.64 is: 1,527.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,328.40 : 4,991.16 = 1,018.64 : x
  2. Step 2: Convert to fraction form
    3,328.40/4,991.16 = 1,018.64/x
  3. Step 3: Cross multiply
    3,328.40x = 4,991.16 × 1,018.64
  4. Step 4: Simplify right side
    3,328.40x = 5,084,195.22
  5. Step 5: Solve for x
    x = 5,084,195.22/3,328.40
  6. Step 6: Final answer
    x = 1,527.52

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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.