Home / 1,935.70-2,670.37-1,228.44

Finding the Fourth Proportional to 1,935.70, 2,670.37 and 1,228.44

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Solution

The fourth proportional to 1,935.70, 2,670.37 and 1,228.44 is: 1,694.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.70 : 2,670.37 = 1,228.44 : x
  2. Step 2: Convert to fraction form
    1,935.70/2,670.37 = 1,228.44/x
  3. Step 3: Cross multiply
    1,935.70x = 2,670.37 × 1,228.44
  4. Step 4: Simplify right side
    1,935.70x = 3,280,389.32
  5. Step 5: Solve for x
    x = 3,280,389.32/1,935.70
  6. Step 6: Final answer
    x = 1,694.68

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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.