Home / 3,827.44-5,742.80-2,440.40

Finding the Fourth Proportional to 3,827.44, 5,742.80 and 2,440.40

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Solution

The fourth proportional to 3,827.44, 5,742.80 and 2,440.40 is: 3,661.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.44 : 5,742.80 = 2,440.40 : x
  2. Step 2: Convert to fraction form
    3,827.44/5,742.80 = 2,440.40/x
  3. Step 3: Cross multiply
    3,827.44x = 5,742.80 × 2,440.40
  4. Step 4: Simplify right side
    3,827.44x = 14,014,729.12
  5. Step 5: Solve for x
    x = 14,014,729.12/3,827.44
  6. Step 6: Final answer
    x = 3,661.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.