Home / 1,908.37-2,858.77-1,257.13

Finding the Fourth Proportional to 1,908.37, 2,858.77 and 1,257.13

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Solution

The fourth proportional to 1,908.37, 2,858.77 and 1,257.13 is: 1,883.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.37 : 2,858.77 = 1,257.13 : x
  2. Step 2: Convert to fraction form
    1,908.37/2,858.77 = 1,257.13/x
  3. Step 3: Cross multiply
    1,908.37x = 2,858.77 × 1,257.13
  4. Step 4: Simplify right side
    1,908.37x = 3,593,845.53
  5. Step 5: Solve for x
    x = 3,593,845.53/1,908.37
  6. Step 6: Final answer
    x = 1,883.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.