Home / 2,140.14-3,207.96-1,042.98

Finding the Fourth Proportional to 2,140.14, 3,207.96 and 1,042.98

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Solution

The fourth proportional to 2,140.14, 3,207.96 and 1,042.98 is: 1,563.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.14 : 3,207.96 = 1,042.98 : x
  2. Step 2: Convert to fraction form
    2,140.14/3,207.96 = 1,042.98/x
  3. Step 3: Cross multiply
    2,140.14x = 3,207.96 × 1,042.98
  4. Step 4: Simplify right side
    2,140.14x = 3,345,838.12
  5. Step 5: Solve for x
    x = 3,345,838.12/2,140.14
  6. Step 6: Final answer
    x = 1,563.37

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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.