Home / 7,714.82-10,646.48-4,178.03

Finding the Fourth Proportional to 7,714.82, 10,646.48 and 4,178.03

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Solution

The fourth proportional to 7,714.82, 10,646.48 and 4,178.03 is: 5,765.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.82 : 10,646.48 = 4,178.03 : x
  2. Step 2: Convert to fraction form
    7,714.82/10,646.48 = 4,178.03/x
  3. Step 3: Cross multiply
    7,714.82x = 10,646.48 × 4,178.03
  4. Step 4: Simplify right side
    7,714.82x = 44,481,270.05
  5. Step 5: Solve for x
    x = 44,481,270.05/7,714.82
  6. Step 6: Final answer
    x = 5,765.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.