Home / 1,556.40-2,147.46-966.62

Finding the Fourth Proportional to 1,556.40, 2,147.46 and 966.62

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Solution

The fourth proportional to 1,556.40, 2,147.46 and 966.62 is: 1,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.40 : 2,147.46 = 966.62 : x
  2. Step 2: Convert to fraction form
    1,556.40/2,147.46 = 966.62/x
  3. Step 3: Cross multiply
    1,556.40x = 2,147.46 × 966.62
  4. Step 4: Simplify right side
    1,556.40x = 2,075,767.05
  5. Step 5: Solve for x
    x = 2,075,767.05/1,556.40
  6. Step 6: Final answer
    x = 1,333.70

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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.