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Finding the Fourth Proportional to 7,078.52, 10,617.73 and 1,813.52

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Solution

The fourth proportional to 7,078.52, 10,617.73 and 1,813.52 is: 2,720.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.52 : 10,617.73 = 1,813.52 : x
  2. Step 2: Convert to fraction form
    7,078.52/10,617.73 = 1,813.52/x
  3. Step 3: Cross multiply
    7,078.52x = 10,617.73 × 1,813.52
  4. Step 4: Simplify right side
    7,078.52x = 19,255,487.72
  5. Step 5: Solve for x
    x = 19,255,487.72/7,078.52
  6. Step 6: Final answer
    x = 2,720.27

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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.