Home / 3,154.72-4,351.80-1,975.56

Finding the Fourth Proportional to 3,154.72, 4,351.80 and 1,975.56

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Solution

The fourth proportional to 3,154.72, 4,351.80 and 1,975.56 is: 2,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.72 : 4,351.80 = 1,975.56 : x
  2. Step 2: Convert to fraction form
    3,154.72/4,351.80 = 1,975.56/x
  3. Step 3: Cross multiply
    3,154.72x = 4,351.80 × 1,975.56
  4. Step 4: Simplify right side
    3,154.72x = 8,597,242.01
  5. Step 5: Solve for x
    x = 8,597,242.01/3,154.72
  6. Step 6: Final answer
    x = 2,725.20

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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.