Home / 4,785.30-7,175.01-1,860.20

Finding the Fourth Proportional to 4,785.30, 7,175.01 and 1,860.20

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Solution

The fourth proportional to 4,785.30, 7,175.01 and 1,860.20 is: 2,789.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.30 : 7,175.01 = 1,860.20 : x
  2. Step 2: Convert to fraction form
    4,785.30/7,175.01 = 1,860.20/x
  3. Step 3: Cross multiply
    4,785.30x = 7,175.01 × 1,860.20
  4. Step 4: Simplify right side
    4,785.30x = 13,346,917.73
  5. Step 5: Solve for x
    x = 13,346,917.73/4,785.30
  6. Step 6: Final answer
    x = 2,789.15

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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.