Home / 2,645.20-3,963.60-2,095.96

Finding the Fourth Proportional to 2,645.20, 3,963.60 and 2,095.96

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Solution

The fourth proportional to 2,645.20, 3,963.60 and 2,095.96 is: 3,140.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.20 : 3,963.60 = 2,095.96 : x
  2. Step 2: Convert to fraction form
    2,645.20/3,963.60 = 2,095.96/x
  3. Step 3: Cross multiply
    2,645.20x = 3,963.60 × 2,095.96
  4. Step 4: Simplify right side
    2,645.20x = 8,307,547.06
  5. Step 5: Solve for x
    x = 8,307,547.06/2,645.20
  6. Step 6: Final answer
    x = 3,140.61

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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.