Home / 7,714.39-10,645.91-4,177.60

Finding the Fourth Proportional to 7,714.39, 10,645.91 and 4,177.60

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Solution

The fourth proportional to 7,714.39, 10,645.91 and 4,177.60 is: 5,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.39 : 10,645.91 = 4,177.60 : x
  2. Step 2: Convert to fraction form
    7,714.39/10,645.91 = 4,177.60/x
  3. Step 3: Cross multiply
    7,714.39x = 10,645.91 × 4,177.60
  4. Step 4: Simplify right side
    7,714.39x = 44,474,353.62
  5. Step 5: Solve for x
    x = 44,474,353.62/7,714.39
  6. Step 6: Final answer
    x = 5,765.12

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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.