Home / 3,881.93-5,355.64-2,485.49

Finding the Fourth Proportional to 3,881.93, 5,355.64 and 2,485.49

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Solution

The fourth proportional to 3,881.93, 5,355.64 and 2,485.49 is: 3,429.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.93 : 5,355.64 = 2,485.49 : x
  2. Step 2: Convert to fraction form
    3,881.93/5,355.64 = 2,485.49/x
  3. Step 3: Cross multiply
    3,881.93x = 5,355.64 × 2,485.49
  4. Step 4: Simplify right side
    3,881.93x = 13,311,389.66
  5. Step 5: Solve for x
    x = 13,311,389.66/3,881.93
  6. Step 6: Final answer
    x = 3,429.06

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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.