Home / 3,971.73-5,478.51-2,557.26

Finding the Fourth Proportional to 3,971.73, 5,478.51 and 2,557.26

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Solution

The fourth proportional to 3,971.73, 5,478.51 and 2,557.26 is: 3,527.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.73 : 5,478.51 = 2,557.26 : x
  2. Step 2: Convert to fraction form
    3,971.73/5,478.51 = 2,557.26/x
  3. Step 3: Cross multiply
    3,971.73x = 5,478.51 × 2,557.26
  4. Step 4: Simplify right side
    3,971.73x = 14,009,974.48
  5. Step 5: Solve for x
    x = 14,009,974.48/3,971.73
  6. Step 6: Final answer
    x = 3,527.42

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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.