Home / 7,173.93-10,761.51-1,979.80

Finding the Fourth Proportional to 7,173.93, 10,761.51 and 1,979.80

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Solution

The fourth proportional to 7,173.93, 10,761.51 and 1,979.80 is: 2,969.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.93 : 10,761.51 = 1,979.80 : x
  2. Step 2: Convert to fraction form
    7,173.93/10,761.51 = 1,979.80/x
  3. Step 3: Cross multiply
    7,173.93x = 10,761.51 × 1,979.80
  4. Step 4: Simplify right side
    7,173.93x = 21,305,637.50
  5. Step 5: Solve for x
    x = 21,305,637.50/7,173.93
  6. Step 6: Final answer
    x = 2,969.87

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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.