Home / 2,201.30-3,036.93-1,316.78

Finding the Fourth Proportional to 2,201.30, 3,036.93 and 1,316.78

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Solution

The fourth proportional to 2,201.30, 3,036.93 and 1,316.78 is: 1,816.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.30 : 3,036.93 = 1,316.78 : x
  2. Step 2: Convert to fraction form
    2,201.30/3,036.93 = 1,316.78/x
  3. Step 3: Cross multiply
    2,201.30x = 3,036.93 × 1,316.78
  4. Step 4: Simplify right side
    2,201.30x = 3,998,968.69
  5. Step 5: Solve for x
    x = 3,998,968.69/2,201.30
  6. Step 6: Final answer
    x = 1,816.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.