Home / 4,145.94-6,219.18-1,372.80

Finding the Fourth Proportional to 4,145.94, 6,219.18 and 1,372.80

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Solution

The fourth proportional to 4,145.94, 6,219.18 and 1,372.80 is: 2,059.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.94 : 6,219.18 = 1,372.80 : x
  2. Step 2: Convert to fraction form
    4,145.94/6,219.18 = 1,372.80/x
  3. Step 3: Cross multiply
    4,145.94x = 6,219.18 × 1,372.80
  4. Step 4: Simplify right side
    4,145.94x = 8,537,690.30
  5. Step 5: Solve for x
    x = 8,537,690.30/4,145.94
  6. Step 6: Final answer
    x = 2,059.29

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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.