Home / 3,827.20-5,283.84-2,894.08

Finding the Fourth Proportional to 3,827.20, 5,283.84 and 2,894.08

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Solution

The fourth proportional to 3,827.20, 5,283.84 and 2,894.08 is: 3,995.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.20 : 5,283.84 = 2,894.08 : x
  2. Step 2: Convert to fraction form
    3,827.20/5,283.84 = 2,894.08/x
  3. Step 3: Cross multiply
    3,827.20x = 5,283.84 × 2,894.08
  4. Step 4: Simplify right side
    3,827.20x = 15,291,855.67
  5. Step 5: Solve for x
    x = 15,291,855.67/3,827.20
  6. Step 6: Final answer
    x = 3,995.57

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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.