Home / 2,867.40-3,955.86-2,203.08

Finding the Fourth Proportional to 2,867.40, 3,955.86 and 2,203.08

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Solution

The fourth proportional to 2,867.40, 3,955.86 and 2,203.08 is: 3,039.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.40 : 3,955.86 = 2,203.08 : x
  2. Step 2: Convert to fraction form
    2,867.40/3,955.86 = 2,203.08/x
  3. Step 3: Cross multiply
    2,867.40x = 3,955.86 × 2,203.08
  4. Step 4: Simplify right side
    2,867.40x = 8,715,076.05
  5. Step 5: Solve for x
    x = 8,715,076.05/2,867.40
  6. Step 6: Final answer
    x = 3,039.37

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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.