Home / 2,971.86-4,101.17-1,645.57

Finding the Fourth Proportional to 2,971.86, 4,101.17 and 1,645.57

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Solution

The fourth proportional to 2,971.86, 4,101.17 and 1,645.57 is: 2,270.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.86 : 4,101.17 = 1,645.57 : x
  2. Step 2: Convert to fraction form
    2,971.86/4,101.17 = 1,645.57/x
  3. Step 3: Cross multiply
    2,971.86x = 4,101.17 × 1,645.57
  4. Step 4: Simplify right side
    2,971.86x = 6,748,754.12
  5. Step 5: Solve for x
    x = 6,748,754.12/2,971.86
  6. Step 6: Final answer
    x = 2,270.88

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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.