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Finding the Fourth Proportional to 2,971.43, 4,457.04 and 1,412.55

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Solution

The fourth proportional to 2,971.43, 4,457.04 and 1,412.55 is: 2,118.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.43 : 4,457.04 = 1,412.55 : x
  2. Step 2: Convert to fraction form
    2,971.43/4,457.04 = 1,412.55/x
  3. Step 3: Cross multiply
    2,971.43x = 4,457.04 × 1,412.55
  4. Step 4: Simplify right side
    2,971.43x = 6,295,791.85
  5. Step 5: Solve for x
    x = 6,295,791.85/2,971.43
  6. Step 6: Final answer
    x = 2,118.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.