Home / 2,790.27-4,182.44-1,326.33

Finding the Fourth Proportional to 2,790.27, 4,182.44 and 1,326.33

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Solution

The fourth proportional to 2,790.27, 4,182.44 and 1,326.33 is: 1,988.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.27 : 4,182.44 = 1,326.33 : x
  2. Step 2: Convert to fraction form
    2,790.27/4,182.44 = 1,326.33/x
  3. Step 3: Cross multiply
    2,790.27x = 4,182.44 × 1,326.33
  4. Step 4: Simplify right side
    2,790.27x = 5,547,289.01
  5. Step 5: Solve for x
    x = 5,547,289.01/2,790.27
  6. Step 6: Final answer
    x = 1,988.08

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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.