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Finding the Fourth Proportional to 5,235.98, 7,855.25 and 1,726.20

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Solution

The fourth proportional to 5,235.98, 7,855.25 and 1,726.20 is: 2,589.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.98 : 7,855.25 = 1,726.20 : x
  2. Step 2: Convert to fraction form
    5,235.98/7,855.25 = 1,726.20/x
  3. Step 3: Cross multiply
    5,235.98x = 7,855.25 × 1,726.20
  4. Step 4: Simplify right side
    5,235.98x = 13,559,723.92
  5. Step 5: Solve for x
    x = 13,559,723.92/5,235.98
  6. Step 6: Final answer
    x = 2,589.72

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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.