Home / 2,971.29-4,100.40-1,645.08

Finding the Fourth Proportional to 2,971.29, 4,100.40 and 1,645.08

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Solution

The fourth proportional to 2,971.29, 4,100.40 and 1,645.08 is: 2,270.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.29 : 4,100.40 = 1,645.08 : x
  2. Step 2: Convert to fraction form
    2,971.29/4,100.40 = 1,645.08/x
  3. Step 3: Cross multiply
    2,971.29x = 4,100.40 × 1,645.08
  4. Step 4: Simplify right side
    2,971.29x = 6,745,486.03
  5. Step 5: Solve for x
    x = 6,745,486.03/2,971.29
  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.