Home / 7,197.08-10,787.70-2,813.72

Finding the Fourth Proportional to 7,197.08, 10,787.70 and 2,813.72

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Solution

The fourth proportional to 7,197.08, 10,787.70 and 2,813.72 is: 4,217.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,197.08 : 10,787.70 = 2,813.72 : x
  2. Step 2: Convert to fraction form
    7,197.08/10,787.70 = 2,813.72/x
  3. Step 3: Cross multiply
    7,197.08x = 10,787.70 × 2,813.72
  4. Step 4: Simplify right side
    7,197.08x = 30,353,567.24
  5. Step 5: Solve for x
    x = 30,353,567.24/7,197.08
  6. Step 6: Final answer
    x = 4,217.48

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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.