Home / 4,180.85-6,271.36-1,219.51

Finding the Fourth Proportional to 4,180.85, 6,271.36 and 1,219.51

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Solution

The fourth proportional to 4,180.85, 6,271.36 and 1,219.51 is: 1,829.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,180.85 : 6,271.36 = 1,219.51 : x
  2. Step 2: Convert to fraction form
    4,180.85/6,271.36 = 1,219.51/x
  3. Step 3: Cross multiply
    4,180.85x = 6,271.36 × 1,219.51
  4. Step 4: Simplify right side
    4,180.85x = 7,647,986.23
  5. Step 5: Solve for x
    x = 7,647,986.23/4,180.85
  6. Step 6: Final answer
    x = 1,829.29

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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.