Home / 2,284.01-3,151.75-1,289.38

Finding the Fourth Proportional to 2,284.01, 3,151.75 and 1,289.38

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Solution

The fourth proportional to 2,284.01, 3,151.75 and 1,289.38 is: 1,779.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.01 : 3,151.75 = 1,289.38 : x
  2. Step 2: Convert to fraction form
    2,284.01/3,151.75 = 1,289.38/x
  3. Step 3: Cross multiply
    2,284.01x = 3,151.75 × 1,289.38
  4. Step 4: Simplify right side
    2,284.01x = 4,063,796.97
  5. Step 5: Solve for x
    x = 4,063,796.97/2,284.01
  6. Step 6: Final answer
    x = 1,779.24

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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.