Home / 2,651.10-3,976.65-1,007.70

Finding the Fourth Proportional to 2,651.10, 3,976.65 and 1,007.70

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Solution

The fourth proportional to 2,651.10, 3,976.65 and 1,007.70 is: 1,511.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.10 : 3,976.65 = 1,007.70 : x
  2. Step 2: Convert to fraction form
    2,651.10/3,976.65 = 1,007.70/x
  3. Step 3: Cross multiply
    2,651.10x = 3,976.65 × 1,007.70
  4. Step 4: Simplify right side
    2,651.10x = 4,007,270.21
  5. Step 5: Solve for x
    x = 4,007,270.21/2,651.10
  6. Step 6: Final answer
    x = 1,511.55

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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.