Home / 2,979.22-4,110.49-2,347.79

Finding the Fourth Proportional to 2,979.22, 4,110.49 and 2,347.79

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Solution

The fourth proportional to 2,979.22, 4,110.49 and 2,347.79 is: 3,239.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.22 : 4,110.49 = 2,347.79 : x
  2. Step 2: Convert to fraction form
    2,979.22/4,110.49 = 2,347.79/x
  3. Step 3: Cross multiply
    2,979.22x = 4,110.49 × 2,347.79
  4. Step 4: Simplify right side
    2,979.22x = 9,650,548.60
  5. Step 5: Solve for x
    x = 9,650,548.60/2,979.22
  6. Step 6: Final answer
    x = 3,239.29

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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.