Home / 2,988.83-4,125.26-1,939.07

Finding the Fourth Proportional to 2,988.83, 4,125.26 and 1,939.07

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Solution

The fourth proportional to 2,988.83, 4,125.26 and 1,939.07 is: 2,676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.83 : 4,125.26 = 1,939.07 : x
  2. Step 2: Convert to fraction form
    2,988.83/4,125.26 = 1,939.07/x
  3. Step 3: Cross multiply
    2,988.83x = 4,125.26 × 1,939.07
  4. Step 4: Simplify right side
    2,988.83x = 7,999,147.28
  5. Step 5: Solve for x
    x = 7,999,147.28/2,988.83
  6. Step 6: Final answer
    x = 2,676.35

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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.