Home / 3,714.55-5,571.35-1,405.75

Finding the Fourth Proportional to 3,714.55, 5,571.35 and 1,405.75

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Solution

The fourth proportional to 3,714.55, 5,571.35 and 1,405.75 is: 2,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,714.55 : 5,571.35 = 1,405.75 : x
  2. Step 2: Convert to fraction form
    3,714.55/5,571.35 = 1,405.75/x
  3. Step 3: Cross multiply
    3,714.55x = 5,571.35 × 1,405.75
  4. Step 4: Simplify right side
    3,714.55x = 7,831,918.23
  5. Step 5: Solve for x
    x = 7,831,918.23/3,714.55
  6. Step 6: Final answer
    x = 2,108.44

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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.