Home / 1,556.85-2,147.66-966.36

Finding the Fourth Proportional to 1,556.85, 2,147.66 and 966.36

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Solution

The fourth proportional to 1,556.85, 2,147.66 and 966.36 is: 1,333.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.85 : 2,147.66 = 966.36 : x
  2. Step 2: Convert to fraction form
    1,556.85/2,147.66 = 966.36/x
  3. Step 3: Cross multiply
    1,556.85x = 2,147.66 × 966.36
  4. Step 4: Simplify right side
    1,556.85x = 2,075,419.56
  5. Step 5: Solve for x
    x = 2,075,419.56/1,556.85
  6. Step 6: Final answer
    x = 1,333.09

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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.