Home / 4,093.92-6,140.64-1,320.48

Finding the Fourth Proportional to 4,093.92, 6,140.64 and 1,320.48

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Solution

The fourth proportional to 4,093.92, 6,140.64 and 1,320.48 is: 1,980.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,093.92 : 6,140.64 = 1,320.48 : x
  2. Step 2: Convert to fraction form
    4,093.92/6,140.64 = 1,320.48/x
  3. Step 3: Cross multiply
    4,093.92x = 6,140.64 × 1,320.48
  4. Step 4: Simplify right side
    4,093.92x = 8,108,592.31
  5. Step 5: Solve for x
    x = 8,108,592.31/4,093.92
  6. Step 6: Final answer
    x = 1,980.64

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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.