Home / 3,999.08-5,518.53-2,206.87

Finding the Fourth Proportional to 3,999.08, 5,518.53 and 2,206.87

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Solution

The fourth proportional to 3,999.08, 5,518.53 and 2,206.87 is: 3,045.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.08 : 5,518.53 = 2,206.87 : x
  2. Step 2: Convert to fraction form
    3,999.08/5,518.53 = 2,206.87/x
  3. Step 3: Cross multiply
    3,999.08x = 5,518.53 × 2,206.87
  4. Step 4: Simplify right side
    3,999.08x = 12,178,678.30
  5. Step 5: Solve for x
    x = 12,178,678.30/3,999.08
  6. Step 6: Final answer
    x = 3,045.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.