Home / 4,120.14-6,179.34-1,521.30

Finding the Fourth Proportional to 4,120.14, 6,179.34 and 1,521.30

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Solution

The fourth proportional to 4,120.14, 6,179.34 and 1,521.30 is: 2,281.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.14 : 6,179.34 = 1,521.30 : x
  2. Step 2: Convert to fraction form
    4,120.14/6,179.34 = 1,521.30/x
  3. Step 3: Cross multiply
    4,120.14x = 6,179.34 × 1,521.30
  4. Step 4: Simplify right side
    4,120.14x = 9,400,629.94
  5. Step 5: Solve for x
    x = 9,400,629.94/4,120.14
  6. Step 6: Final answer
    x = 2,281.63

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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.