Home / 2,971.44-4,100.76-1,645.11

Finding the Fourth Proportional to 2,971.44, 4,100.76 and 1,645.11

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Solution

The fourth proportional to 2,971.44, 4,100.76 and 1,645.11 is: 2,270.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.44 : 4,100.76 = 1,645.11 : x
  2. Step 2: Convert to fraction form
    2,971.44/4,100.76 = 1,645.11/x
  3. Step 3: Cross multiply
    2,971.44x = 4,100.76 × 1,645.11
  4. Step 4: Simplify right side
    2,971.44x = 6,746,201.28
  5. Step 5: Solve for x
    x = 6,746,201.28/2,971.44
  6. Step 6: Final answer
    x = 2,270.35

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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.