Home / 2,235.92-3,087.08-1,999.12

Finding the Fourth Proportional to 2,235.92, 3,087.08 and 1,999.12

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Solution

The fourth proportional to 2,235.92, 3,087.08 and 1,999.12 is: 2,760.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.92 : 3,087.08 = 1,999.12 : x
  2. Step 2: Convert to fraction form
    2,235.92/3,087.08 = 1,999.12/x
  3. Step 3: Cross multiply
    2,235.92x = 3,087.08 × 1,999.12
  4. Step 4: Simplify right side
    2,235.92x = 6,171,443.37
  5. Step 5: Solve for x
    x = 6,171,443.37/2,235.92
  6. Step 6: Final answer
    x = 2,760.14

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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.