Home / 4,716.69-7,070.18-2,121.45

Finding the Fourth Proportional to 4,716.69, 7,070.18 and 2,121.45

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Solution

The fourth proportional to 4,716.69, 7,070.18 and 2,121.45 is: 3,179.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,716.69 : 7,070.18 = 2,121.45 : x
  2. Step 2: Convert to fraction form
    4,716.69/7,070.18 = 2,121.45/x
  3. Step 3: Cross multiply
    4,716.69x = 7,070.18 × 2,121.45
  4. Step 4: Simplify right side
    4,716.69x = 14,999,022.75
  5. Step 5: Solve for x
    x = 14,999,022.75/4,716.69
  6. Step 6: Final answer
    x = 3,179.99

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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.