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Finding the Fourth Proportional to 3,867.63, 5,335.29 and 2,448.81

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Solution

The fourth proportional to 3,867.63, 5,335.29 and 2,448.81 is: 3,378.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.63 : 5,335.29 = 2,448.81 : x
  2. Step 2: Convert to fraction form
    3,867.63/5,335.29 = 2,448.81/x
  3. Step 3: Cross multiply
    3,867.63x = 5,335.29 × 2,448.81
  4. Step 4: Simplify right side
    3,867.63x = 13,065,137.15
  5. Step 5: Solve for x
    x = 13,065,137.15/3,867.63
  6. Step 6: Final answer
    x = 3,378.07

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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.