Home / 3,886.39-5,364.26-2,314.99

Finding the Fourth Proportional to 3,886.39, 5,364.26 and 2,314.99

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Solution

The fourth proportional to 3,886.39, 5,364.26 and 2,314.99 is: 3,195.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.39 : 5,364.26 = 2,314.99 : x
  2. Step 2: Convert to fraction form
    3,886.39/5,364.26 = 2,314.99/x
  3. Step 3: Cross multiply
    3,886.39x = 5,364.26 × 2,314.99
  4. Step 4: Simplify right side
    3,886.39x = 12,418,208.26
  5. Step 5: Solve for x
    x = 12,418,208.26/3,886.39
  6. Step 6: Final answer
    x = 3,195.31

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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.