Home / 2,131.28-3,197.08-571.32

Finding the Fourth Proportional to 2,131.28, 3,197.08 and 571.32

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Solution

The fourth proportional to 2,131.28, 3,197.08 and 571.32 is: 857.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.28 : 3,197.08 = 571.32 : x
  2. Step 2: Convert to fraction form
    2,131.28/3,197.08 = 571.32/x
  3. Step 3: Cross multiply
    2,131.28x = 3,197.08 × 571.32
  4. Step 4: Simplify right side
    2,131.28x = 1,826,555.75
  5. Step 5: Solve for x
    x = 1,826,555.75/2,131.28
  6. Step 6: Final answer
    x = 857.02

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1.5x scale

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.