Home / 1,639.02-2,261.81-892.97

Finding the Fourth Proportional to 1,639.02, 2,261.81 and 892.97

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Solution

The fourth proportional to 1,639.02, 2,261.81 and 892.97 is: 1,232.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.02 : 2,261.81 = 892.97 : x
  2. Step 2: Convert to fraction form
    1,639.02/2,261.81 = 892.97/x
  3. Step 3: Cross multiply
    1,639.02x = 2,261.81 × 892.97
  4. Step 4: Simplify right side
    1,639.02x = 2,019,712.70
  5. Step 5: Solve for x
    x = 2,019,712.70/1,639.02
  6. Step 6: Final answer
    x = 1,232.27

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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.