Home / 1,933.77-2,687.12-1,913.70

Finding the Fourth Proportional to 1,933.77, 2,687.12 and 1,913.70

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Solution

The fourth proportional to 1,933.77, 2,687.12 and 1,913.70 is: 2,659.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.77 : 2,687.12 = 1,913.70 : x
  2. Step 2: Convert to fraction form
    1,933.77/2,687.12 = 1,913.70/x
  3. Step 3: Cross multiply
    1,933.77x = 2,687.12 × 1,913.70
  4. Step 4: Simplify right side
    1,933.77x = 5,142,331.98
  5. Step 5: Solve for x
    x = 5,142,331.98/1,933.77
  6. Step 6: Final answer
    x = 2,659.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.