Home / 3,178.20-4,768.96-2,307.89

Finding the Fourth Proportional to 3,178.20, 4,768.96 and 2,307.89

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Solution

The fourth proportional to 3,178.20, 4,768.96 and 2,307.89 is: 3,463.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.20 : 4,768.96 = 2,307.89 : x
  2. Step 2: Convert to fraction form
    3,178.20/4,768.96 = 2,307.89/x
  3. Step 3: Cross multiply
    3,178.20x = 4,768.96 × 2,307.89
  4. Step 4: Simplify right side
    3,178.20x = 11,006,215.72
  5. Step 5: Solve for x
    x = 11,006,215.72/3,178.20
  6. Step 6: Final answer
    x = 3,463.04

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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.