Home / 2,817.07-4,228.08-1,086.91

Finding the Fourth Proportional to 2,817.07, 4,228.08 and 1,086.91

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Solution

The fourth proportional to 2,817.07, 4,228.08 and 1,086.91 is: 1,631.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.07 : 4,228.08 = 1,086.91 : x
  2. Step 2: Convert to fraction form
    2,817.07/4,228.08 = 1,086.91/x
  3. Step 3: Cross multiply
    2,817.07x = 4,228.08 × 1,086.91
  4. Step 4: Simplify right side
    2,817.07x = 4,595,542.43
  5. Step 5: Solve for x
    x = 4,595,542.43/2,817.07
  6. Step 6: Final answer
    x = 1,631.32

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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.