Home / 2,999.80-4,139.84-1,673.48

Finding the Fourth Proportional to 2,999.80, 4,139.84 and 1,673.48

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Solution

The fourth proportional to 2,999.80, 4,139.84 and 1,673.48 is: 2,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.80 : 4,139.84 = 1,673.48 : x
  2. Step 2: Convert to fraction form
    2,999.80/4,139.84 = 1,673.48/x
  3. Step 3: Cross multiply
    2,999.80x = 4,139.84 × 1,673.48
  4. Step 4: Simplify right side
    2,999.80x = 6,927,939.44
  5. Step 5: Solve for x
    x = 6,927,939.44/2,999.80
  6. Step 6: Final answer
    x = 2,309.47

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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.