Home / 6,412.20-9,623.70-2,519.40

Finding the Fourth Proportional to 6,412.20, 9,623.70 and 2,519.40

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Solution

The fourth proportional to 6,412.20, 9,623.70 and 2,519.40 is: 3,781.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,412.20 : 9,623.70 = 2,519.40 : x
  2. Step 2: Convert to fraction form
    6,412.20/9,623.70 = 2,519.40/x
  3. Step 3: Cross multiply
    6,412.20x = 9,623.70 × 2,519.40
  4. Step 4: Simplify right side
    6,412.20x = 24,245,949.78
  5. Step 5: Solve for x
    x = 24,245,949.78/6,412.20
  6. Step 6: Final answer
    x = 3,781.22

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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.