Home / 2,999.72-4,139.64-1,673.52

Finding the Fourth Proportional to 2,999.72, 4,139.64 and 1,673.52

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Solution

The fourth proportional to 2,999.72, 4,139.64 and 1,673.52 is: 2,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.72 : 4,139.64 = 1,673.52 : x
  2. Step 2: Convert to fraction form
    2,999.72/4,139.64 = 1,673.52/x
  3. Step 3: Cross multiply
    2,999.72x = 4,139.64 × 1,673.52
  4. Step 4: Simplify right side
    2,999.72x = 6,927,770.33
  5. Step 5: Solve for x
    x = 6,927,770.33/2,999.72
  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.