Home / 2,979.54-4,111.79-1,653.33

Finding the Fourth Proportional to 2,979.54, 4,111.79 and 1,653.33

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Solution

The fourth proportional to 2,979.54, 4,111.79 and 1,653.33 is: 2,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.54 : 4,111.79 = 1,653.33 : x
  2. Step 2: Convert to fraction form
    2,979.54/4,111.79 = 1,653.33/x
  3. Step 3: Cross multiply
    2,979.54x = 4,111.79 × 1,653.33
  4. Step 4: Simplify right side
    2,979.54x = 6,798,145.76
  5. Step 5: Solve for x
    x = 6,798,145.76/2,979.54
  6. Step 6: Final answer
    x = 2,281.61

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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.