Home / 3,656.36-5,486.04-1,316.68

Finding the Fourth Proportional to 3,656.36, 5,486.04 and 1,316.68

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Solution

The fourth proportional to 3,656.36, 5,486.04 and 1,316.68 is: 1,975.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.36 : 5,486.04 = 1,316.68 : x
  2. Step 2: Convert to fraction form
    3,656.36/5,486.04 = 1,316.68/x
  3. Step 3: Cross multiply
    3,656.36x = 5,486.04 × 1,316.68
  4. Step 4: Simplify right side
    3,656.36x = 7,223,359.15
  5. Step 5: Solve for x
    x = 7,223,359.15/3,656.36
  6. Step 6: Final answer
    x = 1,975.56

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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.