Home / 2,013.75-2,779.02-1,228.23

Finding the Fourth Proportional to 2,013.75, 2,779.02 and 1,228.23

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Solution

The fourth proportional to 2,013.75, 2,779.02 and 1,228.23 is: 1,694.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.75 : 2,779.02 = 1,228.23 : x
  2. Step 2: Convert to fraction form
    2,013.75/2,779.02 = 1,228.23/x
  3. Step 3: Cross multiply
    2,013.75x = 2,779.02 × 1,228.23
  4. Step 4: Simplify right side
    2,013.75x = 3,413,275.73
  5. Step 5: Solve for x
    x = 3,413,275.73/2,013.75
  6. Step 6: Final answer
    x = 1,694.98

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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.