Home / 2,953.90-4,075.41-1,906.66

Finding the Fourth Proportional to 2,953.90, 4,075.41 and 1,906.66

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Solution

The fourth proportional to 2,953.90, 4,075.41 and 1,906.66 is: 2,630.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.90 : 4,075.41 = 1,906.66 : x
  2. Step 2: Convert to fraction form
    2,953.90/4,075.41 = 1,906.66/x
  3. Step 3: Cross multiply
    2,953.90x = 4,075.41 × 1,906.66
  4. Step 4: Simplify right side
    2,953.90x = 7,770,421.23
  5. Step 5: Solve for x
    x = 7,770,421.23/2,953.90
  6. Step 6: Final answer
    x = 2,630.56

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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.