Home / 2,012.99-2,775.20-1,383.28

Finding the Fourth Proportional to 2,012.99, 2,775.20 and 1,383.28

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Solution

The fourth proportional to 2,012.99, 2,775.20 and 1,383.28 is: 1,907.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.99 : 2,775.20 = 1,383.28 : x
  2. Step 2: Convert to fraction form
    2,012.99/2,775.20 = 1,383.28/x
  3. Step 3: Cross multiply
    2,012.99x = 2,775.20 × 1,383.28
  4. Step 4: Simplify right side
    2,012.99x = 3,838,864.80
  5. Step 5: Solve for x
    x = 3,838,864.80/2,012.99
  6. Step 6: Final answer
    x = 1,907.05

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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.