Home / 4,431.81-6,649.20-1,658.78

Finding the Fourth Proportional to 4,431.81, 6,649.20 and 1,658.78

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Solution

The fourth proportional to 4,431.81, 6,649.20 and 1,658.78 is: 2,488.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,431.81 : 6,649.20 = 1,658.78 : x
  2. Step 2: Convert to fraction form
    4,431.81/6,649.20 = 1,658.78/x
  3. Step 3: Cross multiply
    4,431.81x = 6,649.20 × 1,658.78
  4. Step 4: Simplify right side
    4,431.81x = 11,029,559.98
  5. Step 5: Solve for x
    x = 11,029,559.98/4,431.81
  6. Step 6: Final answer
    x = 2,488.73

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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.