Home / 2,910.63-4,365.15-1,986.02

Finding the Fourth Proportional to 2,910.63, 4,365.15 and 1,986.02

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Solution

The fourth proportional to 2,910.63, 4,365.15 and 1,986.02 is: 2,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.63 : 4,365.15 = 1,986.02 : x
  2. Step 2: Convert to fraction form
    2,910.63/4,365.15 = 1,986.02/x
  3. Step 3: Cross multiply
    2,910.63x = 4,365.15 × 1,986.02
  4. Step 4: Simplify right side
    2,910.63x = 8,669,253.38
  5. Step 5: Solve for x
    x = 8,669,253.38/2,910.63
  6. Step 6: Final answer
    x = 2,978.48

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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.