Home / 2,975.45-4,458.31-1,876.28

Finding the Fourth Proportional to 2,975.45, 4,458.31 and 1,876.28

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Solution

The fourth proportional to 2,975.45, 4,458.31 and 1,876.28 is: 2,811.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.45 : 4,458.31 = 1,876.28 : x
  2. Step 2: Convert to fraction form
    2,975.45/4,458.31 = 1,876.28/x
  3. Step 3: Cross multiply
    2,975.45x = 4,458.31 × 1,876.28
  4. Step 4: Simplify right side
    2,975.45x = 8,365,010.90
  5. Step 5: Solve for x
    x = 8,365,010.90/2,975.45
  6. Step 6: Final answer
    x = 2,811.35

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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.