Home / 1,921.24-2,884.74-1,886.68

Finding the Fourth Proportional to 1,921.24, 2,884.74 and 1,886.68

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Solution

The fourth proportional to 1,921.24, 2,884.74 and 1,886.68 is: 2,832.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.24 : 2,884.74 = 1,886.68 : x
  2. Step 2: Convert to fraction form
    1,921.24/2,884.74 = 1,886.68/x
  3. Step 3: Cross multiply
    1,921.24x = 2,884.74 × 1,886.68
  4. Step 4: Simplify right side
    1,921.24x = 5,442,581.26
  5. Step 5: Solve for x
    x = 5,442,581.26/1,921.24
  6. Step 6: Final answer
    x = 2,832.85

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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.