Home / 2,201.68-3,036.86-1,316.88

Finding the Fourth Proportional to 2,201.68, 3,036.86 and 1,316.88

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Solution

The fourth proportional to 2,201.68, 3,036.86 and 1,316.88 is: 1,816.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.68 : 3,036.86 = 1,316.88 : x
  2. Step 2: Convert to fraction form
    2,201.68/3,036.86 = 1,316.88/x
  3. Step 3: Cross multiply
    2,201.68x = 3,036.86 × 1,316.88
  4. Step 4: Simplify right side
    2,201.68x = 3,999,180.20
  5. Step 5: Solve for x
    x = 3,999,180.20/2,201.68
  6. Step 6: Final answer
    x = 1,816.42

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1.5x scale

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.