Home / 3,904.63-5,388.39-2,136.23

Finding the Fourth Proportional to 3,904.63, 5,388.39 and 2,136.23

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Solution

The fourth proportional to 3,904.63, 5,388.39 and 2,136.23 is: 2,948.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.63 : 5,388.39 = 2,136.23 : x
  2. Step 2: Convert to fraction form
    3,904.63/5,388.39 = 2,136.23/x
  3. Step 3: Cross multiply
    3,904.63x = 5,388.39 × 2,136.23
  4. Step 4: Simplify right side
    3,904.63x = 11,510,840.37
  5. Step 5: Solve for x
    x = 11,510,840.37/3,904.63
  6. Step 6: Final answer
    x = 2,948.00

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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.