Home / 2,971.47-4,100.49-1,645.14

Finding the Fourth Proportional to 2,971.47, 4,100.49 and 1,645.14

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Solution

The fourth proportional to 2,971.47, 4,100.49 and 1,645.14 is: 2,270.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.47 : 4,100.49 = 1,645.14 : x
  2. Step 2: Convert to fraction form
    2,971.47/4,100.49 = 1,645.14/x
  3. Step 3: Cross multiply
    2,971.47x = 4,100.49 × 1,645.14
  4. Step 4: Simplify right side
    2,971.47x = 6,745,880.12
  5. Step 5: Solve for x
    x = 6,745,880.12/2,971.47
  6. Step 6: Final answer
    x = 2,270.22

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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.