Home / 2,818.52-3,890.58-2,293.64

Finding the Fourth Proportional to 2,818.52, 3,890.58 and 2,293.64

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Solution

The fourth proportional to 2,818.52, 3,890.58 and 2,293.64 is: 3,166.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.52 : 3,890.58 = 2,293.64 : x
  2. Step 2: Convert to fraction form
    2,818.52/3,890.58 = 2,293.64/x
  3. Step 3: Cross multiply
    2,818.52x = 3,890.58 × 2,293.64
  4. Step 4: Simplify right side
    2,818.52x = 8,923,589.91
  5. Step 5: Solve for x
    x = 8,923,589.91/2,818.52
  6. Step 6: Final answer
    x = 3,166.06

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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.