Home / 3,490.96-4,817.52-1,999.36

Finding the Fourth Proportional to 3,490.96, 4,817.52 and 1,999.36

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Solution

The fourth proportional to 3,490.96, 4,817.52 and 1,999.36 is: 2,759.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.96 : 4,817.52 = 1,999.36 : x
  2. Step 2: Convert to fraction form
    3,490.96/4,817.52 = 1,999.36/x
  3. Step 3: Cross multiply
    3,490.96x = 4,817.52 × 1,999.36
  4. Step 4: Simplify right side
    3,490.96x = 9,631,956.79
  5. Step 5: Solve for x
    x = 9,631,956.79/3,490.96
  6. Step 6: Final answer
    x = 2,759.11

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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.