Home / 1,894.15-2,615.21-1,186.28

Finding the Fourth Proportional to 1,894.15, 2,615.21 and 1,186.28

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Solution

The fourth proportional to 1,894.15, 2,615.21 and 1,186.28 is: 1,637.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.15 : 2,615.21 = 1,186.28 : x
  2. Step 2: Convert to fraction form
    1,894.15/2,615.21 = 1,186.28/x
  3. Step 3: Cross multiply
    1,894.15x = 2,615.21 × 1,186.28
  4. Step 4: Simplify right side
    1,894.15x = 3,102,371.32
  5. Step 5: Solve for x
    x = 3,102,371.32/1,894.15
  6. Step 6: Final answer
    x = 1,637.87

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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.