Home / 4,785.38-7,177.86-1,666.09

Finding the Fourth Proportional to 4,785.38, 7,177.86 and 1,666.09

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Solution

The fourth proportional to 4,785.38, 7,177.86 and 1,666.09 is: 2,499.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.38 : 7,177.86 = 1,666.09 : x
  2. Step 2: Convert to fraction form
    4,785.38/7,177.86 = 1,666.09/x
  3. Step 3: Cross multiply
    4,785.38x = 7,177.86 × 1,666.09
  4. Step 4: Simplify right side
    4,785.38x = 11,958,924.88
  5. Step 5: Solve for x
    x = 11,958,924.88/4,785.38
  6. Step 6: Final answer
    x = 2,499.05

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1.5x scale

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.