Home / 1,894.02-2,612.78-1,231.24

Finding the Fourth Proportional to 1,894.02, 2,612.78 and 1,231.24

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Solution

The fourth proportional to 1,894.02, 2,612.78 and 1,231.24 is: 1,698.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.02 : 2,612.78 = 1,231.24 : x
  2. Step 2: Convert to fraction form
    1,894.02/2,612.78 = 1,231.24/x
  3. Step 3: Cross multiply
    1,894.02x = 2,612.78 × 1,231.24
  4. Step 4: Simplify right side
    1,894.02x = 3,216,959.25
  5. Step 5: Solve for x
    x = 3,216,959.25/1,894.02
  6. Step 6: Final answer
    x = 1,698.48

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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.