Home / 1,894.19-2,615.26-1,186.31

Finding the Fourth Proportional to 1,894.19, 2,615.26 and 1,186.31

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Solution

The fourth proportional to 1,894.19, 2,615.26 and 1,186.31 is: 1,637.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.19 : 2,615.26 = 1,186.31 : x
  2. Step 2: Convert to fraction form
    1,894.19/2,615.26 = 1,186.31/x
  3. Step 3: Cross multiply
    1,894.19x = 2,615.26 × 1,186.31
  4. Step 4: Simplify right side
    1,894.19x = 3,102,512.66
  5. Step 5: Solve for x
    x = 3,102,512.66/1,894.19
  6. Step 6: Final answer
    x = 1,637.91

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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.