Home / 2,919.92-4,377.60-1,458.32

Finding the Fourth Proportional to 2,919.92, 4,377.60 and 1,458.32

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Solution

The fourth proportional to 2,919.92, 4,377.60 and 1,458.32 is: 2,186.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.92 : 4,377.60 = 1,458.32 : x
  2. Step 2: Convert to fraction form
    2,919.92/4,377.60 = 1,458.32/x
  3. Step 3: Cross multiply
    2,919.92x = 4,377.60 × 1,458.32
  4. Step 4: Simplify right side
    2,919.92x = 6,383,941.63
  5. Step 5: Solve for x
    x = 6,383,941.63/2,919.92
  6. Step 6: Final answer
    x = 2,186.34

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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.