Home / 3,721.81-5,136.15-2,043.19

Finding the Fourth Proportional to 3,721.81, 5,136.15 and 2,043.19

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Solution

The fourth proportional to 3,721.81, 5,136.15 and 2,043.19 is: 2,819.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.81 : 5,136.15 = 2,043.19 : x
  2. Step 2: Convert to fraction form
    3,721.81/5,136.15 = 2,043.19/x
  3. Step 3: Cross multiply
    3,721.81x = 5,136.15 × 2,043.19
  4. Step 4: Simplify right side
    3,721.81x = 10,494,130.32
  5. Step 5: Solve for x
    x = 10,494,130.32/3,721.81
  6. Step 6: Final answer
    x = 2,819.63

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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.