Home / 1,946.82-2,920.23-1,292.88

Finding the Fourth Proportional to 1,946.82, 2,920.23 and 1,292.88

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Solution

The fourth proportional to 1,946.82, 2,920.23 and 1,292.88 is: 1,939.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.82 : 2,920.23 = 1,292.88 : x
  2. Step 2: Convert to fraction form
    1,946.82/2,920.23 = 1,292.88/x
  3. Step 3: Cross multiply
    1,946.82x = 2,920.23 × 1,292.88
  4. Step 4: Simplify right side
    1,946.82x = 3,775,506.96
  5. Step 5: Solve for x
    x = 3,775,506.96/1,946.82
  6. Step 6: Final answer
    x = 1,939.32

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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.