Home / 2,631.16-3,630.70-1,511.92

Finding the Fourth Proportional to 2,631.16, 3,630.70 and 1,511.92

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Solution

The fourth proportional to 2,631.16, 3,630.70 and 1,511.92 is: 2,086.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.16 : 3,630.70 = 1,511.92 : x
  2. Step 2: Convert to fraction form
    2,631.16/3,630.70 = 1,511.92/x
  3. Step 3: Cross multiply
    2,631.16x = 3,630.70 × 1,511.92
  4. Step 4: Simplify right side
    2,631.16x = 5,489,327.94
  5. Step 5: Solve for x
    x = 5,489,327.94/2,631.16
  6. Step 6: Final answer
    x = 2,086.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.