Home / 2,910.88-4,365.55-1,986.27

Finding the Fourth Proportional to 2,910.88, 4,365.55 and 1,986.27

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Solution

The fourth proportional to 2,910.88, 4,365.55 and 1,986.27 is: 2,978.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.88 : 4,365.55 = 1,986.27 : x
  2. Step 2: Convert to fraction form
    2,910.88/4,365.55 = 1,986.27/x
  3. Step 3: Cross multiply
    2,910.88x = 4,365.55 × 1,986.27
  4. Step 4: Simplify right side
    2,910.88x = 8,671,161.00
  5. Step 5: Solve for x
    x = 8,671,161.00/2,910.88
  6. Step 6: Final answer
    x = 2,978.88

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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.