Home / 3,881.17-5,357.82-2,287.32

Finding the Fourth Proportional to 3,881.17, 5,357.82 and 2,287.32

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Solution

The fourth proportional to 3,881.17, 5,357.82 and 2,287.32 is: 3,157.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.17 : 5,357.82 = 2,287.32 : x
  2. Step 2: Convert to fraction form
    3,881.17/5,357.82 = 2,287.32/x
  3. Step 3: Cross multiply
    3,881.17x = 5,357.82 × 2,287.32
  4. Step 4: Simplify right side
    3,881.17x = 12,255,048.84
  5. Step 5: Solve for x
    x = 12,255,048.84/3,881.17
  6. Step 6: Final answer
    x = 3,157.57

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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.