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Finding the Fourth Proportional to 5,393.15, 8,089.77 and 1,695.30

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Solution

The fourth proportional to 5,393.15, 8,089.77 and 1,695.30 is: 2,542.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.15 : 8,089.77 = 1,695.30 : x
  2. Step 2: Convert to fraction form
    5,393.15/8,089.77 = 1,695.30/x
  3. Step 3: Cross multiply
    5,393.15x = 8,089.77 × 1,695.30
  4. Step 4: Simplify right side
    5,393.15x = 13,714,563.10
  5. Step 5: Solve for x
    x = 13,714,563.10/5,393.15
  6. Step 6: Final answer
    x = 2,542.96

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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.