Home / 6,783.30-10,155.78-4,311.99

Finding the Fourth Proportional to 6,783.30, 10,155.78 and 4,311.99

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Solution

The fourth proportional to 6,783.30, 10,155.78 and 4,311.99 is: 6,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,783.30 : 10,155.78 = 4,311.99 : x
  2. Step 2: Convert to fraction form
    6,783.30/10,155.78 = 4,311.99/x
  3. Step 3: Cross multiply
    6,783.30x = 10,155.78 × 4,311.99
  4. Step 4: Simplify right side
    6,783.30x = 43,791,621.80
  5. Step 5: Solve for x
    x = 43,791,621.80/6,783.30
  6. Step 6: Final answer
    x = 6,455.80

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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.