Home / 3,855.22-5,331.14-3,681.17

Finding the Fourth Proportional to 3,855.22, 5,331.14 and 3,681.17

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Solution

The fourth proportional to 3,855.22, 5,331.14 and 3,681.17 is: 5,090.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.22 : 5,331.14 = 3,681.17 : x
  2. Step 2: Convert to fraction form
    3,855.22/5,331.14 = 3,681.17/x
  3. Step 3: Cross multiply
    3,855.22x = 5,331.14 × 3,681.17
  4. Step 4: Simplify right side
    3,855.22x = 19,624,832.63
  5. Step 5: Solve for x
    x = 19,624,832.63/3,855.22
  6. Step 6: Final answer
    x = 5,090.46

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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.