Home / 3,985.33-5,499.58-2,306.65

Finding the Fourth Proportional to 3,985.33, 5,499.58 and 2,306.65

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Solution

The fourth proportional to 3,985.33, 5,499.58 and 2,306.65 is: 3,183.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.33 : 5,499.58 = 2,306.65 : x
  2. Step 2: Convert to fraction form
    3,985.33/5,499.58 = 2,306.65/x
  3. Step 3: Cross multiply
    3,985.33x = 5,499.58 × 2,306.65
  4. Step 4: Simplify right side
    3,985.33x = 12,685,606.21
  5. Step 5: Solve for x
    x = 12,685,606.21/3,985.33
  6. Step 6: Final answer
    x = 3,183.08

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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.