Home / 1,995.36-2,753.60-1,111.33

Finding the Fourth Proportional to 1,995.36, 2,753.60 and 1,111.33

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Solution

The fourth proportional to 1,995.36, 2,753.60 and 1,111.33 is: 1,533.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.36 : 2,753.60 = 1,111.33 : x
  2. Step 2: Convert to fraction form
    1,995.36/2,753.60 = 1,111.33/x
  3. Step 3: Cross multiply
    1,995.36x = 2,753.60 × 1,111.33
  4. Step 4: Simplify right side
    1,995.36x = 3,060,158.29
  5. Step 5: Solve for x
    x = 3,060,158.29/1,995.36
  6. Step 6: Final answer
    x = 1,533.64

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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.