Home / 3,140.44-4,714.74-2,656.55

Finding the Fourth Proportional to 3,140.44, 4,714.74 and 2,656.55

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Solution

The fourth proportional to 3,140.44, 4,714.74 and 2,656.55 is: 3,988.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.44 : 4,714.74 = 2,656.55 : x
  2. Step 2: Convert to fraction form
    3,140.44/4,714.74 = 2,656.55/x
  3. Step 3: Cross multiply
    3,140.44x = 4,714.74 × 2,656.55
  4. Step 4: Simplify right side
    3,140.44x = 12,524,954.33
  5. Step 5: Solve for x
    x = 12,524,954.33/3,140.44
  6. Step 6: Final answer
    x = 3,988.28

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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.