Home / 4,784-7,178.74-1,861.93

Finding the Fourth Proportional to 4,784, 7,178.74 and 1,861.93

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Solution

The fourth proportional to 4,784, 7,178.74 and 1,861.93 is: 2,793.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,784 : 7,178.74 = 1,861.93 : x
  2. Step 2: Convert to fraction form
    4,784/7,178.74 = 1,861.93/x
  3. Step 3: Cross multiply
    4,784x = 7,178.74 × 1,861.93
  4. Step 4: Simplify right side
    4,784x = 13,366,311.37
  5. Step 5: Solve for x
    x = 13,366,311.37/4,784
  6. Step 6: Final answer
    x = 2,793.96

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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.