Home / 2,810.31-4,215.67-1,640.42

Finding the Fourth Proportional to 2,810.31, 4,215.67 and 1,640.42

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Solution

The fourth proportional to 2,810.31, 4,215.67 and 1,640.42 is: 2,460.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.31 : 4,215.67 = 1,640.42 : x
  2. Step 2: Convert to fraction form
    2,810.31/4,215.67 = 1,640.42/x
  3. Step 3: Cross multiply
    2,810.31x = 4,215.67 × 1,640.42
  4. Step 4: Simplify right side
    2,810.31x = 6,915,460.01
  5. Step 5: Solve for x
    x = 6,915,460.01/2,810.31
  6. Step 6: Final answer
    x = 2,460.75

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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.