Home / 2,946.75-4,066.40-1,620.37

Finding the Fourth Proportional to 2,946.75, 4,066.40 and 1,620.37

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Solution

The fourth proportional to 2,946.75, 4,066.40 and 1,620.37 is: 2,236.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.75 : 4,066.40 = 1,620.37 : x
  2. Step 2: Convert to fraction form
    2,946.75/4,066.40 = 1,620.37/x
  3. Step 3: Cross multiply
    2,946.75x = 4,066.40 × 1,620.37
  4. Step 4: Simplify right side
    2,946.75x = 6,589,072.57
  5. Step 5: Solve for x
    x = 6,589,072.57/2,946.75
  6. Step 6: Final answer
    x = 2,236.05

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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.