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Finding the Fourth Proportional to 2,479.86, 3,720.36 and 2,041.80

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Solution

The fourth proportional to 2,479.86, 3,720.36 and 2,041.80 is: 3,063.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.86 : 3,720.36 = 2,041.80 : x
  2. Step 2: Convert to fraction form
    2,479.86/3,720.36 = 2,041.80/x
  3. Step 3: Cross multiply
    2,479.86x = 3,720.36 × 2,041.80
  4. Step 4: Simplify right side
    2,479.86x = 7,596,231.05
  5. Step 5: Solve for x
    x = 7,596,231.05/2,479.86
  6. Step 6: Final answer
    x = 3,063.17

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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.