Home / 4,785.13-7,178.24-2,187.73

Finding the Fourth Proportional to 4,785.13, 7,178.24 and 2,187.73

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Solution

The fourth proportional to 4,785.13, 7,178.24 and 2,187.73 is: 3,281.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.13 : 7,178.24 = 2,187.73 : x
  2. Step 2: Convert to fraction form
    4,785.13/7,178.24 = 2,187.73/x
  3. Step 3: Cross multiply
    4,785.13x = 7,178.24 × 2,187.73
  4. Step 4: Simplify right side
    4,785.13x = 15,704,051.00
  5. Step 5: Solve for x
    x = 15,704,051.00/4,785.13
  6. Step 6: Final answer
    x = 3,281.84

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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.