Home / 4,990.69-7,485.63-2,214.82

Finding the Fourth Proportional to 4,990.69, 7,485.63 and 2,214.82

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Solution

The fourth proportional to 4,990.69, 7,485.63 and 2,214.82 is: 3,322.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.69 : 7,485.63 = 2,214.82 : x
  2. Step 2: Convert to fraction form
    4,990.69/7,485.63 = 2,214.82/x
  3. Step 3: Cross multiply
    4,990.69x = 7,485.63 × 2,214.82
  4. Step 4: Simplify right side
    4,990.69x = 16,579,323.04
  5. Step 5: Solve for x
    x = 16,579,323.04/4,990.69
  6. Step 6: Final answer
    x = 3,322.05

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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.