Home / 3,484.30-4,806.96-1,991.42

Finding the Fourth Proportional to 3,484.30, 4,806.96 and 1,991.42

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Solution

The fourth proportional to 3,484.30, 4,806.96 and 1,991.42 is: 2,747.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,484.30 : 4,806.96 = 1,991.42 : x
  2. Step 2: Convert to fraction form
    3,484.30/4,806.96 = 1,991.42/x
  3. Step 3: Cross multiply
    3,484.30x = 4,806.96 × 1,991.42
  4. Step 4: Simplify right side
    3,484.30x = 9,572,659.72
  5. Step 5: Solve for x
    x = 9,572,659.72/3,484.30
  6. Step 6: Final answer
    x = 2,747.37

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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.