Home / 4,147.20-6,219.72-1,374.12

Finding the Fourth Proportional to 4,147.20, 6,219.72 and 1,374.12

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Solution

The fourth proportional to 4,147.20, 6,219.72 and 1,374.12 is: 2,060.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.20 : 6,219.72 = 1,374.12 : x
  2. Step 2: Convert to fraction form
    4,147.20/6,219.72 = 1,374.12/x
  3. Step 3: Cross multiply
    4,147.20x = 6,219.72 × 1,374.12
  4. Step 4: Simplify right side
    4,147.20x = 8,546,641.65
  5. Step 5: Solve for x
    x = 8,546,641.65/4,147.20
  6. Step 6: Final answer
    x = 2,060.82

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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.