Home / 2,802.43-3,868.91-1,683.64

Finding the Fourth Proportional to 2,802.43, 3,868.91 and 1,683.64

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Solution

The fourth proportional to 2,802.43, 3,868.91 and 1,683.64 is: 2,324.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.43 : 3,868.91 = 1,683.64 : x
  2. Step 2: Convert to fraction form
    2,802.43/3,868.91 = 1,683.64/x
  3. Step 3: Cross multiply
    2,802.43x = 3,868.91 × 1,683.64
  4. Step 4: Simplify right side
    2,802.43x = 6,513,843.21
  5. Step 5: Solve for x
    x = 6,513,843.21/2,802.43
  6. Step 6: Final answer
    x = 2,324.36

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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.