Home / 7,375.21-10,176.90-4,188.89

Finding the Fourth Proportional to 7,375.21, 10,176.90 and 4,188.89

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Solution

The fourth proportional to 7,375.21, 10,176.90 and 4,188.89 is: 5,780.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,375.21 : 10,176.90 = 4,188.89 : x
  2. Step 2: Convert to fraction form
    7,375.21/10,176.90 = 4,188.89/x
  3. Step 3: Cross multiply
    7,375.21x = 10,176.90 × 4,188.89
  4. Step 4: Simplify right side
    7,375.21x = 42,629,914.64
  5. Step 5: Solve for x
    x = 42,629,914.64/7,375.21
  6. Step 6: Final answer
    x = 5,780.16

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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.