Home / 3,999.23-5,516.51-2,580.69

Finding the Fourth Proportional to 3,999.23, 5,516.51 and 2,580.69

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Solution

The fourth proportional to 3,999.23, 5,516.51 and 2,580.69 is: 3,559.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.23 : 5,516.51 = 2,580.69 : x
  2. Step 2: Convert to fraction form
    3,999.23/5,516.51 = 2,580.69/x
  3. Step 3: Cross multiply
    3,999.23x = 5,516.51 × 2,580.69
  4. Step 4: Simplify right side
    3,999.23x = 14,236,402.19
  5. Step 5: Solve for x
    x = 14,236,402.19/3,999.23
  6. Step 6: Final answer
    x = 3,559.79

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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.