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Finding the Fourth Proportional to 5,755.79, 8,633.73 and 1,860.20

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Solution

The fourth proportional to 5,755.79, 8,633.73 and 1,860.20 is: 2,790.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,755.79 : 8,633.73 = 1,860.20 : x
  2. Step 2: Convert to fraction form
    5,755.79/8,633.73 = 1,860.20/x
  3. Step 3: Cross multiply
    5,755.79x = 8,633.73 × 1,860.20
  4. Step 4: Simplify right side
    5,755.79x = 16,060,464.55
  5. Step 5: Solve for x
    x = 16,060,464.55/5,755.79
  6. Step 6: Final answer
    x = 2,790.31

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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.