Home / 3,570.30-4,926.78-1,998.36

Finding the Fourth Proportional to 3,570.30, 4,926.78 and 1,998.36

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Solution

The fourth proportional to 3,570.30, 4,926.78 and 1,998.36 is: 2,757.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.30 : 4,926.78 = 1,998.36 : x
  2. Step 2: Convert to fraction form
    3,570.30/4,926.78 = 1,998.36/x
  3. Step 3: Cross multiply
    3,570.30x = 4,926.78 × 1,998.36
  4. Step 4: Simplify right side
    3,570.30x = 9,845,480.08
  5. Step 5: Solve for x
    x = 9,845,480.08/3,570.30
  6. Step 6: Final answer
    x = 2,757.61

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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.