Home / 5,712.81-8,559.82-3,516.90

Finding the Fourth Proportional to 5,712.81, 8,559.82 and 3,516.90

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Solution

The fourth proportional to 5,712.81, 8,559.82 and 3,516.90 is: 5,269.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.81 : 8,559.82 = 3,516.90 : x
  2. Step 2: Convert to fraction form
    5,712.81/8,559.82 = 3,516.90/x
  3. Step 3: Cross multiply
    5,712.81x = 8,559.82 × 3,516.90
  4. Step 4: Simplify right side
    5,712.81x = 30,104,030.96
  5. Step 5: Solve for x
    x = 30,104,030.96/5,712.81
  6. Step 6: Final answer
    x = 5,269.57

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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.