Home / 2,482.48-3,422.40-2,405.80

Finding the Fourth Proportional to 2,482.48, 3,422.40 and 2,405.80

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Solution

The fourth proportional to 2,482.48, 3,422.40 and 2,405.80 is: 3,316.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,482.48 : 3,422.40 = 2,405.80 : x
  2. Step 2: Convert to fraction form
    2,482.48/3,422.40 = 2,405.80/x
  3. Step 3: Cross multiply
    2,482.48x = 3,422.40 × 2,405.80
  4. Step 4: Simplify right side
    2,482.48x = 8,233,609.92
  5. Step 5: Solve for x
    x = 8,233,609.92/2,482.48
  6. Step 6: Final answer
    x = 3,316.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.