Home / 2,170.17-3,253.91-1,131.35

Finding the Fourth Proportional to 2,170.17, 3,253.91 and 1,131.35

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Solution

The fourth proportional to 2,170.17, 3,253.91 and 1,131.35 is: 1,696.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.17 : 3,253.91 = 1,131.35 : x
  2. Step 2: Convert to fraction form
    2,170.17/3,253.91 = 1,131.35/x
  3. Step 3: Cross multiply
    2,170.17x = 3,253.91 × 1,131.35
  4. Step 4: Simplify right side
    2,170.17x = 3,681,289.15
  5. Step 5: Solve for x
    x = 3,681,289.15/2,170.17
  6. Step 6: Final answer
    x = 1,696.31

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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.