Home / 2,802.12-4,200.92-1,815.94

Finding the Fourth Proportional to 2,802.12, 4,200.92 and 1,815.94

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Solution

The fourth proportional to 2,802.12, 4,200.92 and 1,815.94 is: 2,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.12 : 4,200.92 = 1,815.94 : x
  2. Step 2: Convert to fraction form
    2,802.12/4,200.92 = 1,815.94/x
  3. Step 3: Cross multiply
    2,802.12x = 4,200.92 × 1,815.94
  4. Step 4: Simplify right side
    2,802.12x = 7,628,618.66
  5. Step 5: Solve for x
    x = 7,628,618.66/2,802.12
  6. Step 6: Final answer
    x = 2,722.45

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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.