Home / 5,815.67-8,723.43-1,920.11

Finding the Fourth Proportional to 5,815.67, 8,723.43 and 1,920.11

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Solution

The fourth proportional to 5,815.67, 8,723.43 and 1,920.11 is: 2,880.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.67 : 8,723.43 = 1,920.11 : x
  2. Step 2: Convert to fraction form
    5,815.67/8,723.43 = 1,920.11/x
  3. Step 3: Cross multiply
    5,815.67x = 8,723.43 × 1,920.11
  4. Step 4: Simplify right side
    5,815.67x = 16,749,901.56
  5. Step 5: Solve for x
    x = 16,749,901.56/5,815.67
  6. Step 6: Final answer
    x = 2,880.14

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1.5x scale

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.