Home / 2,171.35-2,996.45-1,176.64

Finding the Fourth Proportional to 2,171.35, 2,996.45 and 1,176.64

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Solution

The fourth proportional to 2,171.35, 2,996.45 and 1,176.64 is: 1,623.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.35 : 2,996.45 = 1,176.64 : x
  2. Step 2: Convert to fraction form
    2,171.35/2,996.45 = 1,176.64/x
  3. Step 3: Cross multiply
    2,171.35x = 2,996.45 × 1,176.64
  4. Step 4: Simplify right side
    2,171.35x = 3,525,729.55
  5. Step 5: Solve for x
    x = 3,525,729.55/2,171.35
  6. Step 6: Final answer
    x = 1,623.75

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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.