Home / 2,023.08-2,789.19-1,392.45

Finding the Fourth Proportional to 2,023.08, 2,789.19 and 1,392.45

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Solution

The fourth proportional to 2,023.08, 2,789.19 and 1,392.45 is: 1,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,023.08 : 2,789.19 = 1,392.45 : x
  2. Step 2: Convert to fraction form
    2,023.08/2,789.19 = 1,392.45/x
  3. Step 3: Cross multiply
    2,023.08x = 2,789.19 × 1,392.45
  4. Step 4: Simplify right side
    2,023.08x = 3,883,807.62
  5. Step 5: Solve for x
    x = 3,883,807.62/2,023.08
  6. Step 6: Final answer
    x = 1,919.75

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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.