Home / 1,556.75-2,148.05-1,025.85

Finding the Fourth Proportional to 1,556.75, 2,148.05 and 1,025.85

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Solution

The fourth proportional to 1,556.75, 2,148.05 and 1,025.85 is: 1,415.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.75 : 2,148.05 = 1,025.85 : x
  2. Step 2: Convert to fraction form
    1,556.75/2,148.05 = 1,025.85/x
  3. Step 3: Cross multiply
    1,556.75x = 2,148.05 × 1,025.85
  4. Step 4: Simplify right side
    1,556.75x = 2,203,571.96
  5. Step 5: Solve for x
    x = 2,203,571.96/1,556.75
  6. Step 6: Final answer
    x = 1,415.50

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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.