Home / 7,122.37-10,690.25-3,614.89

Finding the Fourth Proportional to 7,122.37, 10,690.25 and 3,614.89

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Solution

The fourth proportional to 7,122.37, 10,690.25 and 3,614.89 is: 5,425.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.37 : 10,690.25 = 3,614.89 : x
  2. Step 2: Convert to fraction form
    7,122.37/10,690.25 = 3,614.89/x
  3. Step 3: Cross multiply
    7,122.37x = 10,690.25 × 3,614.89
  4. Step 4: Simplify right side
    7,122.37x = 38,644,077.82
  5. Step 5: Solve for x
    x = 38,644,077.82/7,122.37
  6. Step 6: Final answer
    x = 5,425.73

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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.