Home / 2,014.21-2,779.86-1,228.06

Finding the Fourth Proportional to 2,014.21, 2,779.86 and 1,228.06

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Solution

The fourth proportional to 2,014.21, 2,779.86 and 1,228.06 is: 1,694.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,014.21 : 2,779.86 = 1,228.06 : x
  2. Step 2: Convert to fraction form
    2,014.21/2,779.86 = 1,228.06/x
  3. Step 3: Cross multiply
    2,014.21x = 2,779.86 × 1,228.06
  4. Step 4: Simplify right side
    2,014.21x = 3,413,834.87
  5. Step 5: Solve for x
    x = 3,413,834.87/2,014.21
  6. Step 6: Final answer
    x = 1,694.88

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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.