Home / 3,010.11-4,153.75-1,891

Finding the Fourth Proportional to 3,010.11, 4,153.75 and 1,891

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Solution

The fourth proportional to 3,010.11, 4,153.75 and 1,891 is: 2,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,010.11 : 4,153.75 = 1,891 : x
  2. Step 2: Convert to fraction form
    3,010.11/4,153.75 = 1,891/x
  3. Step 3: Cross multiply
    3,010.11x = 4,153.75 × 1,891
  4. Step 4: Simplify right side
    3,010.11x = 7,854,741.25
  5. Step 5: Solve for x
    x = 7,854,741.25/3,010.11
  6. Step 6: Final answer
    x = 2,609.45

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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.