Home / 4,328.38-6,488.74-2,105.99

Finding the Fourth Proportional to 4,328.38, 6,488.74 and 2,105.99

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Solution

The fourth proportional to 4,328.38, 6,488.74 and 2,105.99 is: 3,157.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,328.38 : 6,488.74 = 2,105.99 : x
  2. Step 2: Convert to fraction form
    4,328.38/6,488.74 = 2,105.99/x
  3. Step 3: Cross multiply
    4,328.38x = 6,488.74 × 2,105.99
  4. Step 4: Simplify right side
    4,328.38x = 13,665,178.58
  5. Step 5: Solve for x
    x = 13,665,178.58/4,328.38
  6. Step 6: Final answer
    x = 3,157.12

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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.