Home / 3,162.83-4,368.56-2,171.39

Finding the Fourth Proportional to 3,162.83, 4,368.56 and 2,171.39

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Solution

The fourth proportional to 3,162.83, 4,368.56 and 2,171.39 is: 2,999.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.83 : 4,368.56 = 2,171.39 : x
  2. Step 2: Convert to fraction form
    3,162.83/4,368.56 = 2,171.39/x
  3. Step 3: Cross multiply
    3,162.83x = 4,368.56 × 2,171.39
  4. Step 4: Simplify right side
    3,162.83x = 9,485,825.66
  5. Step 5: Solve for x
    x = 9,485,825.66/3,162.83
  6. Step 6: Final answer
    x = 2,999.16

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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.