Home / 2,979.33-4,110.64-2,347.90

Finding the Fourth Proportional to 2,979.33, 4,110.64 and 2,347.90

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Solution

The fourth proportional to 2,979.33, 4,110.64 and 2,347.90 is: 3,239.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.33 : 4,110.64 = 2,347.90 : x
  2. Step 2: Convert to fraction form
    2,979.33/4,110.64 = 2,347.90/x
  3. Step 3: Cross multiply
    2,979.33x = 4,110.64 × 2,347.90
  4. Step 4: Simplify right side
    2,979.33x = 9,651,359.92
  5. Step 5: Solve for x
    x = 9,651,359.92/2,979.33
  6. Step 6: Final answer
    x = 3,239.44

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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.