Home / 2,884.08-3,968.28-2,818.56

Finding the Fourth Proportional to 2,884.08, 3,968.28 and 2,818.56

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Solution

The fourth proportional to 2,884.08, 3,968.28 and 2,818.56 is: 3,878.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.08 : 3,968.28 = 2,818.56 : x
  2. Step 2: Convert to fraction form
    2,884.08/3,968.28 = 2,818.56/x
  3. Step 3: Cross multiply
    2,884.08x = 3,968.28 × 2,818.56
  4. Step 4: Simplify right side
    2,884.08x = 11,184,835.28
  5. Step 5: Solve for x
    x = 11,184,835.28/2,884.08
  6. Step 6: Final answer
    x = 3,878.13

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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.