Home / 1,995.56-2,753.85-1,111.46

Finding the Fourth Proportional to 1,995.56, 2,753.85 and 1,111.46

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Solution

The fourth proportional to 1,995.56, 2,753.85 and 1,111.46 is: 1,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.56 : 2,753.85 = 1,111.46 : x
  2. Step 2: Convert to fraction form
    1,995.56/2,753.85 = 1,111.46/x
  3. Step 3: Cross multiply
    1,995.56x = 2,753.85 × 1,111.46
  4. Step 4: Simplify right side
    1,995.56x = 3,060,794.12
  5. Step 5: Solve for x
    x = 3,060,794.12/1,995.56
  6. Step 6: Final answer
    x = 1,533.80

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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.