Home / 3,859.36-5,325.91-2,090.97

Finding the Fourth Proportional to 3,859.36, 5,325.91 and 2,090.97

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Solution

The fourth proportional to 3,859.36, 5,325.91 and 2,090.97 is: 2,885.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.36 : 5,325.91 = 2,090.97 : x
  2. Step 2: Convert to fraction form
    3,859.36/5,325.91 = 2,090.97/x
  3. Step 3: Cross multiply
    3,859.36x = 5,325.91 × 2,090.97
  4. Step 4: Simplify right side
    3,859.36x = 11,136,312.81
  5. Step 5: Solve for x
    x = 11,136,312.81/3,859.36
  6. Step 6: Final answer
    x = 2,885.54

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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.