Home / 2,791.45-4,178.94-2,445.46

Finding the Fourth Proportional to 2,791.45, 4,178.94 and 2,445.46

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Solution

The fourth proportional to 2,791.45, 4,178.94 and 2,445.46 is: 3,660.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.45 : 4,178.94 = 2,445.46 : x
  2. Step 2: Convert to fraction form
    2,791.45/4,178.94 = 2,445.46/x
  3. Step 3: Cross multiply
    2,791.45x = 4,178.94 × 2,445.46
  4. Step 4: Simplify right side
    2,791.45x = 10,219,430.61
  5. Step 5: Solve for x
    x = 10,219,430.61/2,791.45
  6. Step 6: Final answer
    x = 3,660.98

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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.