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Finding the Fourth Proportional to 2,802.78, 3,866.67 and 2,210.94

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Solution

The fourth proportional to 2,802.78, 3,866.67 and 2,210.94 is: 3,050.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.78 : 3,866.67 = 2,210.94 : x
  2. Step 2: Convert to fraction form
    2,802.78/3,866.67 = 2,210.94/x
  3. Step 3: Cross multiply
    2,802.78x = 3,866.67 × 2,210.94
  4. Step 4: Simplify right side
    2,802.78x = 8,548,975.37
  5. Step 5: Solve for x
    x = 8,548,975.37/2,802.78
  6. Step 6: Final answer
    x = 3,050.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.