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Finding the Fourth Proportional to 5,237.55, 7,842.95 and 5,081.72

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Solution

The fourth proportional to 5,237.55, 7,842.95 and 5,081.72 is: 7,609.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.55 : 7,842.95 = 5,081.72 : x
  2. Step 2: Convert to fraction form
    5,237.55/7,842.95 = 5,081.72/x
  3. Step 3: Cross multiply
    5,237.55x = 7,842.95 × 5,081.72
  4. Step 4: Simplify right side
    5,237.55x = 39,855,611.25
  5. Step 5: Solve for x
    x = 39,855,611.25/5,237.55
  6. Step 6: Final answer
    x = 7,609.59

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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.