Home / 2,802.09-4,199.50-1,415.63

Finding the Fourth Proportional to 2,802.09, 4,199.50 and 1,415.63

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Solution

The fourth proportional to 2,802.09, 4,199.50 and 1,415.63 is: 2,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.09 : 4,199.50 = 1,415.63 : x
  2. Step 2: Convert to fraction form
    2,802.09/4,199.50 = 1,415.63/x
  3. Step 3: Cross multiply
    2,802.09x = 4,199.50 × 1,415.63
  4. Step 4: Simplify right side
    2,802.09x = 5,944,918.87
  5. Step 5: Solve for x
    x = 5,944,918.87/2,802.09
  6. Step 6: Final answer
    x = 2,121.60

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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.