Home / 3,140.07-4,703.68-2,520.42

Finding the Fourth Proportional to 3,140.07, 4,703.68 and 2,520.42

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Solution

The fourth proportional to 3,140.07, 4,703.68 and 2,520.42 is: 3,775.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.07 : 4,703.68 = 2,520.42 : x
  2. Step 2: Convert to fraction form
    3,140.07/4,703.68 = 2,520.42/x
  3. Step 3: Cross multiply
    3,140.07x = 4,703.68 × 2,520.42
  4. Step 4: Simplify right side
    3,140.07x = 11,855,249.15
  5. Step 5: Solve for x
    x = 11,855,249.15/3,140.07
  6. Step 6: Final answer
    x = 3,775.47

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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.