Home / 2,486.09-3,429.39-2,136.63

Finding the Fourth Proportional to 2,486.09, 3,429.39 and 2,136.63

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Solution

The fourth proportional to 2,486.09, 3,429.39 and 2,136.63 is: 2,947.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.09 : 3,429.39 = 2,136.63 : x
  2. Step 2: Convert to fraction form
    2,486.09/3,429.39 = 2,136.63/x
  3. Step 3: Cross multiply
    2,486.09x = 3,429.39 × 2,136.63
  4. Step 4: Simplify right side
    2,486.09x = 7,327,337.56
  5. Step 5: Solve for x
    x = 7,327,337.56/2,486.09
  6. Step 6: Final answer
    x = 2,947.33

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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.