Home / 2,802.90-3,866.33-1,683.18

Finding the Fourth Proportional to 2,802.90, 3,866.33 and 1,683.18

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Solution

The fourth proportional to 2,802.90, 3,866.33 and 1,683.18 is: 2,321.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.90 : 3,866.33 = 1,683.18 : x
  2. Step 2: Convert to fraction form
    2,802.90/3,866.33 = 1,683.18/x
  3. Step 3: Cross multiply
    2,802.90x = 3,866.33 × 1,683.18
  4. Step 4: Simplify right side
    2,802.90x = 6,507,733.54
  5. Step 5: Solve for x
    x = 6,507,733.54/2,802.90
  6. Step 6: Final answer
    x = 2,321.78

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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.