Home / 3,859.03-5,325.48-2,090.64

Finding the Fourth Proportional to 3,859.03, 5,325.48 and 2,090.64

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Solution

The fourth proportional to 3,859.03, 5,325.48 and 2,090.64 is: 2,885.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.03 : 5,325.48 = 2,090.64 : x
  2. Step 2: Convert to fraction form
    3,859.03/5,325.48 = 2,090.64/x
  3. Step 3: Cross multiply
    3,859.03x = 5,325.48 × 2,090.64
  4. Step 4: Simplify right side
    3,859.03x = 11,133,661.51
  5. Step 5: Solve for x
    x = 11,133,661.51/3,859.03
  6. Step 6: Final answer
    x = 2,885.09

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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.