Home / 3,316.36-4,976.16-1,369.12

Finding the Fourth Proportional to 3,316.36, 4,976.16 and 1,369.12

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Solution

The fourth proportional to 3,316.36, 4,976.16 and 1,369.12 is: 2,054.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.36 : 4,976.16 = 1,369.12 : x
  2. Step 2: Convert to fraction form
    3,316.36/4,976.16 = 1,369.12/x
  3. Step 3: Cross multiply
    3,316.36x = 4,976.16 × 1,369.12
  4. Step 4: Simplify right side
    3,316.36x = 6,812,960.18
  5. Step 5: Solve for x
    x = 6,812,960.18/3,316.36
  6. Step 6: Final answer
    x = 2,054.35

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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.