Home / 3,584.56-4,946.63-1,991.21

Finding the Fourth Proportional to 3,584.56, 4,946.63 and 1,991.21

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Solution

The fourth proportional to 3,584.56, 4,946.63 and 1,991.21 is: 2,747.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,584.56 : 4,946.63 = 1,991.21 : x
  2. Step 2: Convert to fraction form
    3,584.56/4,946.63 = 1,991.21/x
  3. Step 3: Cross multiply
    3,584.56x = 4,946.63 × 1,991.21
  4. Step 4: Simplify right side
    3,584.56x = 9,849,781.53
  5. Step 5: Solve for x
    x = 9,849,781.53/3,584.56
  6. Step 6: Final answer
    x = 2,747.84

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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.