Home / 3,140.43-4,714.74-2,656.56

Finding the Fourth Proportional to 3,140.43, 4,714.74 and 2,656.56

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Solution

The fourth proportional to 3,140.43, 4,714.74 and 2,656.56 is: 3,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.43 : 4,714.74 = 2,656.56 : x
  2. Step 2: Convert to fraction form
    3,140.43/4,714.74 = 2,656.56/x
  3. Step 3: Cross multiply
    3,140.43x = 4,714.74 × 2,656.56
  4. Step 4: Simplify right side
    3,140.43x = 12,524,989.69
  5. Step 5: Solve for x
    x = 12,524,989.69/3,140.43
  6. Step 6: Final answer
    x = 3,988.30

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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.