Home / 1,361.07-1,876.64-1,150.88

Finding the Fourth Proportional to 1,361.07, 1,876.64 and 1,150.88

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Solution

The fourth proportional to 1,361.07, 1,876.64 and 1,150.88 is: 1,586.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.07 : 1,876.64 = 1,150.88 : x
  2. Step 2: Convert to fraction form
    1,361.07/1,876.64 = 1,150.88/x
  3. Step 3: Cross multiply
    1,361.07x = 1,876.64 × 1,150.88
  4. Step 4: Simplify right side
    1,361.07x = 2,159,772.31
  5. Step 5: Solve for x
    x = 2,159,772.31/1,361.07
  6. Step 6: Final answer
    x = 1,586.82

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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.