Home / 1,556.69-2,329.26-1,247.60

Finding the Fourth Proportional to 1,556.69, 2,329.26 and 1,247.60

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Solution

The fourth proportional to 1,556.69, 2,329.26 and 1,247.60 is: 1,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.69 : 2,329.26 = 1,247.60 : x
  2. Step 2: Convert to fraction form
    1,556.69/2,329.26 = 1,247.60/x
  3. Step 3: Cross multiply
    1,556.69x = 2,329.26 × 1,247.60
  4. Step 4: Simplify right side
    1,556.69x = 2,905,993.72
  5. Step 5: Solve for x
    x = 2,905,993.72/1,556.69
  6. Step 6: Final answer
    x = 1,866.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.