Home / 3,809.23-5,256.57-2,130.64

Finding the Fourth Proportional to 3,809.23, 5,256.57 and 2,130.64

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Solution

The fourth proportional to 3,809.23, 5,256.57 and 2,130.64 is: 2,940.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.23 : 5,256.57 = 2,130.64 : x
  2. Step 2: Convert to fraction form
    3,809.23/5,256.57 = 2,130.64/x
  3. Step 3: Cross multiply
    3,809.23x = 5,256.57 × 2,130.64
  4. Step 4: Simplify right side
    3,809.23x = 11,199,858.30
  5. Step 5: Solve for x
    x = 11,199,858.30/3,809.23
  6. Step 6: Final answer
    x = 2,940.19

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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.