Home / 4,783.10-7,178.29-1,861.63

Finding the Fourth Proportional to 4,783.10, 7,178.29 and 1,861.63

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Solution

The fourth proportional to 4,783.10, 7,178.29 and 1,861.63 is: 2,793.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,783.10 : 7,178.29 = 1,861.63 : x
  2. Step 2: Convert to fraction form
    4,783.10/7,178.29 = 1,861.63/x
  3. Step 3: Cross multiply
    4,783.10x = 7,178.29 × 1,861.63
  4. Step 4: Simplify right side
    4,783.10x = 13,363,297.41
  5. Step 5: Solve for x
    x = 13,363,297.41/4,783.10
  6. Step 6: Final answer
    x = 2,793.86

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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.