Home / 6,448.20-9,670.86-2,290.80

Finding the Fourth Proportional to 6,448.20, 9,670.86 and 2,290.80

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Solution

The fourth proportional to 6,448.20, 9,670.86 and 2,290.80 is: 3,435.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448.20 : 9,670.86 = 2,290.80 : x
  2. Step 2: Convert to fraction form
    6,448.20/9,670.86 = 2,290.80/x
  3. Step 3: Cross multiply
    6,448.20x = 9,670.86 × 2,290.80
  4. Step 4: Simplify right side
    6,448.20x = 22,154,006.09
  5. Step 5: Solve for x
    x = 22,154,006.09/6,448.20
  6. Step 6: Final answer
    x = 3,435.69

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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.