Home / 2,001.28-2,986.76-1,949.44

Finding the Fourth Proportional to 2,001.28, 2,986.76 and 1,949.44

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Solution

The fourth proportional to 2,001.28, 2,986.76 and 1,949.44 is: 2,909.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.28 : 2,986.76 = 1,949.44 : x
  2. Step 2: Convert to fraction form
    2,001.28/2,986.76 = 1,949.44/x
  3. Step 3: Cross multiply
    2,001.28x = 2,986.76 × 1,949.44
  4. Step 4: Simplify right side
    2,001.28x = 5,822,509.41
  5. Step 5: Solve for x
    x = 5,822,509.41/2,001.28
  6. Step 6: Final answer
    x = 2,909.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.