Home / 2,812.36-3,881.24-1,617.44

Finding the Fourth Proportional to 2,812.36, 3,881.24 and 1,617.44

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Solution

The fourth proportional to 2,812.36, 3,881.24 and 1,617.44 is: 2,232.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.36 : 3,881.24 = 1,617.44 : x
  2. Step 2: Convert to fraction form
    2,812.36/3,881.24 = 1,617.44/x
  3. Step 3: Cross multiply
    2,812.36x = 3,881.24 × 1,617.44
  4. Step 4: Simplify right side
    2,812.36x = 6,277,672.83
  5. Step 5: Solve for x
    x = 6,277,672.83/2,812.36
  6. Step 6: Final answer
    x = 2,232.17

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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.