Home / 2,817.19-4,219.43-1,357.43

Finding the Fourth Proportional to 2,817.19, 4,219.43 and 1,357.43

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Solution

The fourth proportional to 2,817.19, 4,219.43 and 1,357.43 is: 2,033.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.19 : 4,219.43 = 1,357.43 : x
  2. Step 2: Convert to fraction form
    2,817.19/4,219.43 = 1,357.43/x
  3. Step 3: Cross multiply
    2,817.19x = 4,219.43 × 1,357.43
  4. Step 4: Simplify right side
    2,817.19x = 5,727,580.86
  5. Step 5: Solve for x
    x = 5,727,580.86/2,817.19
  6. Step 6: Final answer
    x = 2,033.09

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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.