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Finding the Fourth Proportional to 5,707.80, 8,567.10 and 3,520.80

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Solution

The fourth proportional to 5,707.80, 8,567.10 and 3,520.80 is: 5,284.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,707.80 : 8,567.10 = 3,520.80 : x
  2. Step 2: Convert to fraction form
    5,707.80/8,567.10 = 3,520.80/x
  3. Step 3: Cross multiply
    5,707.80x = 8,567.10 × 3,520.80
  4. Step 4: Simplify right side
    5,707.80x = 30,163,045.68
  5. Step 5: Solve for x
    x = 30,163,045.68/5,707.80
  6. Step 6: Final answer
    x = 5,284.53

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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.