Home / 1,995.54-2,753.65-1,111.38

Finding the Fourth Proportional to 1,995.54, 2,753.65 and 1,111.38

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Solution

The fourth proportional to 1,995.54, 2,753.65 and 1,111.38 is: 1,533.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.54 : 2,753.65 = 1,111.38 : x
  2. Step 2: Convert to fraction form
    1,995.54/2,753.65 = 1,111.38/x
  3. Step 3: Cross multiply
    1,995.54x = 2,753.65 × 1,111.38
  4. Step 4: Simplify right side
    1,995.54x = 3,060,351.54
  5. Step 5: Solve for x
    x = 3,060,351.54/1,995.54
  6. Step 6: Final answer
    x = 1,533.60

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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.