Home / 3,579.70-4,941.21-2,164.18

Finding the Fourth Proportional to 3,579.70, 4,941.21 and 2,164.18

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Solution

The fourth proportional to 3,579.70, 4,941.21 and 2,164.18 is: 2,987.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.70 : 4,941.21 = 2,164.18 : x
  2. Step 2: Convert to fraction form
    3,579.70/4,941.21 = 2,164.18/x
  3. Step 3: Cross multiply
    3,579.70x = 4,941.21 × 2,164.18
  4. Step 4: Simplify right side
    3,579.70x = 10,693,667.86
  5. Step 5: Solve for x
    x = 10,693,667.86/3,579.70
  6. Step 6: Final answer
    x = 2,987.31

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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.