Home / 3,881.03-5,355.75-2,156.26

Finding the Fourth Proportional to 3,881.03, 5,355.75 and 2,156.26

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Solution

The fourth proportional to 3,881.03, 5,355.75 and 2,156.26 is: 2,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.03 : 5,355.75 = 2,156.26 : x
  2. Step 2: Convert to fraction form
    3,881.03/5,355.75 = 2,156.26/x
  3. Step 3: Cross multiply
    3,881.03x = 5,355.75 × 2,156.26
  4. Step 4: Simplify right side
    3,881.03x = 11,548,378.71
  5. Step 5: Solve for x
    x = 11,548,378.71/3,881.03
  6. Step 6: Final answer
    x = 2,975.60

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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.