Home / 1,920.33-2,874.96-1,455.39

Finding the Fourth Proportional to 1,920.33, 2,874.96 and 1,455.39

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Solution

The fourth proportional to 1,920.33, 2,874.96 and 1,455.39 is: 2,178.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920.33 : 2,874.96 = 1,455.39 : x
  2. Step 2: Convert to fraction form
    1,920.33/2,874.96 = 1,455.39/x
  3. Step 3: Cross multiply
    1,920.33x = 2,874.96 × 1,455.39
  4. Step 4: Simplify right side
    1,920.33x = 4,184,188.03
  5. Step 5: Solve for x
    x = 4,184,188.03/1,920.33
  6. Step 6: Final answer
    x = 2,178.89

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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.