Home / 1,894.20-2,612.03-1,297.55

Finding the Fourth Proportional to 1,894.20, 2,612.03 and 1,297.55

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Solution

The fourth proportional to 1,894.20, 2,612.03 and 1,297.55 is: 1,789.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.20 : 2,612.03 = 1,297.55 : x
  2. Step 2: Convert to fraction form
    1,894.20/2,612.03 = 1,297.55/x
  3. Step 3: Cross multiply
    1,894.20x = 2,612.03 × 1,297.55
  4. Step 4: Simplify right side
    1,894.20x = 3,389,239.53
  5. Step 5: Solve for x
    x = 3,389,239.53/1,894.20
  6. Step 6: Final answer
    x = 1,789.27

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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.