Home / 1,634.43-2,255.29-971.15

Finding the Fourth Proportional to 1,634.43, 2,255.29 and 971.15

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Solution

The fourth proportional to 1,634.43, 2,255.29 and 971.15 is: 1,340.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.43 : 2,255.29 = 971.15 : x
  2. Step 2: Convert to fraction form
    1,634.43/2,255.29 = 971.15/x
  3. Step 3: Cross multiply
    1,634.43x = 2,255.29 × 971.15
  4. Step 4: Simplify right side
    1,634.43x = 2,190,224.88
  5. Step 5: Solve for x
    x = 2,190,224.88/1,634.43
  6. Step 6: Final answer
    x = 1,340.05

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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.