Home / 3,508.92-5,265.72-1,319.40

Finding the Fourth Proportional to 3,508.92, 5,265.72 and 1,319.40

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Solution

The fourth proportional to 3,508.92, 5,265.72 and 1,319.40 is: 1,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.92 : 5,265.72 = 1,319.40 : x
  2. Step 2: Convert to fraction form
    3,508.92/5,265.72 = 1,319.40/x
  3. Step 3: Cross multiply
    3,508.92x = 5,265.72 × 1,319.40
  4. Step 4: Simplify right side
    3,508.92x = 6,947,590.97
  5. Step 5: Solve for x
    x = 6,947,590.97/3,508.92
  6. Step 6: Final answer
    x = 1,979.98

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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.