Home / 2,810.14-4,215.30-961.18

Finding the Fourth Proportional to 2,810.14, 4,215.30 and 961.18

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Solution

The fourth proportional to 2,810.14, 4,215.30 and 961.18 is: 1,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.14 : 4,215.30 = 961.18 : x
  2. Step 2: Convert to fraction form
    2,810.14/4,215.30 = 961.18/x
  3. Step 3: Cross multiply
    2,810.14x = 4,215.30 × 961.18
  4. Step 4: Simplify right side
    2,810.14x = 4,051,662.05
  5. Step 5: Solve for x
    x = 4,051,662.05/2,810.14
  6. Step 6: Final answer
    x = 1,441.80

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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.