Home / 2,147.19-3,220.79-1,498.38

Finding the Fourth Proportional to 2,147.19, 3,220.79 and 1,498.38

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Solution

The fourth proportional to 2,147.19, 3,220.79 and 1,498.38 is: 2,247.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.19 : 3,220.79 = 1,498.38 : x
  2. Step 2: Convert to fraction form
    2,147.19/3,220.79 = 1,498.38/x
  3. Step 3: Cross multiply
    2,147.19x = 3,220.79 × 1,498.38
  4. Step 4: Simplify right side
    2,147.19x = 4,825,959.83
  5. Step 5: Solve for x
    x = 4,825,959.83/2,147.19
  6. Step 6: Final answer
    x = 2,247.57

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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.