Home / 1,983.96-2,979.18-1,711.80

Finding the Fourth Proportional to 1,983.96, 2,979.18 and 1,711.80

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Solution

The fourth proportional to 1,983.96, 2,979.18 and 1,711.80 is: 2,570.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.96 : 2,979.18 = 1,711.80 : x
  2. Step 2: Convert to fraction form
    1,983.96/2,979.18 = 1,711.80/x
  3. Step 3: Cross multiply
    1,983.96x = 2,979.18 × 1,711.80
  4. Step 4: Simplify right side
    1,983.96x = 5,099,760.32
  5. Step 5: Solve for x
    x = 5,099,760.32/1,983.96
  6. Step 6: Final answer
    x = 2,570.50

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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.