Home / 1,137.28-1,576.06-1,123.36

Finding the Fourth Proportional to 1,137.28, 1,576.06 and 1,123.36

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Solution

The fourth proportional to 1,137.28, 1,576.06 and 1,123.36 is: 1,556.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137.28 : 1,576.06 = 1,123.36 : x
  2. Step 2: Convert to fraction form
    1,137.28/1,576.06 = 1,123.36/x
  3. Step 3: Cross multiply
    1,137.28x = 1,576.06 × 1,123.36
  4. Step 4: Simplify right side
    1,137.28x = 1,770,482.76
  5. Step 5: Solve for x
    x = 1,770,482.76/1,137.28
  6. Step 6: Final answer
    x = 1,556.77

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.