Home / 2,634.90-3,637.62-1,971.51

Finding the Fourth Proportional to 2,634.90, 3,637.62 and 1,971.51

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Solution

The fourth proportional to 2,634.90, 3,637.62 and 1,971.51 is: 2,721.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,634.90 : 3,637.62 = 1,971.51 : x
  2. Step 2: Convert to fraction form
    2,634.90/3,637.62 = 1,971.51/x
  3. Step 3: Cross multiply
    2,634.90x = 3,637.62 × 1,971.51
  4. Step 4: Simplify right side
    2,634.90x = 7,171,604.21
  5. Step 5: Solve for x
    x = 7,171,604.21/2,634.90
  6. Step 6: Final answer
    x = 2,721.77

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1.5x scale

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.