Home / 1,571.52-2,166.38-1,197.85

Finding the Fourth Proportional to 1,571.52, 2,166.38 and 1,197.85

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Solution

The fourth proportional to 1,571.52, 2,166.38 and 1,197.85 is: 1,651.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.52 : 2,166.38 = 1,197.85 : x
  2. Step 2: Convert to fraction form
    1,571.52/2,166.38 = 1,197.85/x
  3. Step 3: Cross multiply
    1,571.52x = 2,166.38 × 1,197.85
  4. Step 4: Simplify right side
    1,571.52x = 2,594,998.28
  5. Step 5: Solve for x
    x = 2,594,998.28/1,571.52
  6. Step 6: Final answer
    x = 1,651.27

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1.5x scale

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.