Home / 2,171.51-2,996.70-1,176.80

Finding the Fourth Proportional to 2,171.51, 2,996.70 and 1,176.80

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Solution

The fourth proportional to 2,171.51, 2,996.70 and 1,176.80 is: 1,623.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.51 : 2,996.70 = 1,176.80 : x
  2. Step 2: Convert to fraction form
    2,171.51/2,996.70 = 1,176.80/x
  3. Step 3: Cross multiply
    2,171.51x = 2,996.70 × 1,176.80
  4. Step 4: Simplify right side
    2,171.51x = 3,526,497.16
  5. Step 5: Solve for x
    x = 3,526,497.16/2,171.51
  6. Step 6: Final answer
    x = 1,623.98

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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.