Home / 4,245.72-6,369.66-1,647.78

Finding the Fourth Proportional to 4,245.72, 6,369.66 and 1,647.78

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Solution

The fourth proportional to 4,245.72, 6,369.66 and 1,647.78 is: 2,472.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,245.72 : 6,369.66 = 1,647.78 : x
  2. Step 2: Convert to fraction form
    4,245.72/6,369.66 = 1,647.78/x
  3. Step 3: Cross multiply
    4,245.72x = 6,369.66 × 1,647.78
  4. Step 4: Simplify right side
    4,245.72x = 10,495,798.35
  5. Step 5: Solve for x
    x = 10,495,798.35/4,245.72
  6. Step 6: Final answer
    x = 2,472.09

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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.