Home / 3,208.25-4,427.60-1,881.47

Finding the Fourth Proportional to 3,208.25, 4,427.60 and 1,881.47

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Solution

The fourth proportional to 3,208.25, 4,427.60 and 1,881.47 is: 2,596.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.25 : 4,427.60 = 1,881.47 : x
  2. Step 2: Convert to fraction form
    3,208.25/4,427.60 = 1,881.47/x
  3. Step 3: Cross multiply
    3,208.25x = 4,427.60 × 1,881.47
  4. Step 4: Simplify right side
    3,208.25x = 8,330,398.23
  5. Step 5: Solve for x
    x = 8,330,398.23/3,208.25
  6. Step 6: Final answer
    x = 2,596.55

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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.