Home / 1,886.76-2,824.38-1,398.60

Finding the Fourth Proportional to 1,886.76, 2,824.38 and 1,398.60

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Solution

The fourth proportional to 1,886.76, 2,824.38 and 1,398.60 is: 2,093.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886.76 : 2,824.38 = 1,398.60 : x
  2. Step 2: Convert to fraction form
    1,886.76/2,824.38 = 1,398.60/x
  3. Step 3: Cross multiply
    1,886.76x = 2,824.38 × 1,398.60
  4. Step 4: Simplify right side
    1,886.76x = 3,950,177.87
  5. Step 5: Solve for x
    x = 3,950,177.87/1,886.76
  6. Step 6: Final answer
    x = 2,093.63

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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.