Home / 3,415.16-4,712.96-1,998.54

Finding the Fourth Proportional to 3,415.16, 4,712.96 and 1,998.54

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Solution

The fourth proportional to 3,415.16, 4,712.96 and 1,998.54 is: 2,758.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.16 : 4,712.96 = 1,998.54 : x
  2. Step 2: Convert to fraction form
    3,415.16/4,712.96 = 1,998.54/x
  3. Step 3: Cross multiply
    3,415.16x = 4,712.96 × 1,998.54
  4. Step 4: Simplify right side
    3,415.16x = 9,419,044.07
  5. Step 5: Solve for x
    x = 9,419,044.07/3,415.16
  6. Step 6: Final answer
    x = 2,758.01

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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.