Home / 2,802.72-3,867.12-1,683.36

Finding the Fourth Proportional to 2,802.72, 3,867.12 and 1,683.36

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Solution

The fourth proportional to 2,802.72, 3,867.12 and 1,683.36 is: 2,322.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.72 : 3,867.12 = 1,683.36 : x
  2. Step 2: Convert to fraction form
    2,802.72/3,867.12 = 1,683.36/x
  3. Step 3: Cross multiply
    2,802.72x = 3,867.12 × 1,683.36
  4. Step 4: Simplify right side
    2,802.72x = 6,509,755.12
  5. Step 5: Solve for x
    x = 6,509,755.12/2,802.72
  6. Step 6: Final answer
    x = 2,322.66

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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.