Home / 1,908.02-2,634.06-1,236.78

Finding the Fourth Proportional to 1,908.02, 2,634.06 and 1,236.78

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Solution

The fourth proportional to 1,908.02, 2,634.06 and 1,236.78 is: 1,707.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.02 : 2,634.06 = 1,236.78 : x
  2. Step 2: Convert to fraction form
    1,908.02/2,634.06 = 1,236.78/x
  3. Step 3: Cross multiply
    1,908.02x = 2,634.06 × 1,236.78
  4. Step 4: Simplify right side
    1,908.02x = 3,257,752.73
  5. Step 5: Solve for x
    x = 3,257,752.73/1,908.02
  6. Step 6: Final answer
    x = 1,707.40

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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.