Home / 2,910.96-4,010.07-2,163.63

Finding the Fourth Proportional to 2,910.96, 4,010.07 and 2,163.63

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Solution

The fourth proportional to 2,910.96, 4,010.07 and 2,163.63 is: 2,980.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.96 : 4,010.07 = 2,163.63 : x
  2. Step 2: Convert to fraction form
    2,910.96/4,010.07 = 2,163.63/x
  3. Step 3: Cross multiply
    2,910.96x = 4,010.07 × 2,163.63
  4. Step 4: Simplify right side
    2,910.96x = 8,676,307.75
  5. Step 5: Solve for x
    x = 8,676,307.75/2,910.96
  6. Step 6: Final answer
    x = 2,980.57

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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.