Home / 1,772.52-2,446.07-986.57

Finding the Fourth Proportional to 1,772.52, 2,446.07 and 986.57

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Solution

The fourth proportional to 1,772.52, 2,446.07 and 986.57 is: 1,361.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.52 : 2,446.07 = 986.57 : x
  2. Step 2: Convert to fraction form
    1,772.52/2,446.07 = 986.57/x
  3. Step 3: Cross multiply
    1,772.52x = 2,446.07 × 986.57
  4. Step 4: Simplify right side
    1,772.52x = 2,413,219.28
  5. Step 5: Solve for x
    x = 2,413,219.28/1,772.52
  6. Step 6: Final answer
    x = 1,361.46

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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.