Home / 7,415.34-11,121.39-2,485.68

Finding the Fourth Proportional to 7,415.34, 11,121.39 and 2,485.68

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Solution

The fourth proportional to 7,415.34, 11,121.39 and 2,485.68 is: 3,727.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.34 : 11,121.39 = 2,485.68 : x
  2. Step 2: Convert to fraction form
    7,415.34/11,121.39 = 2,485.68/x
  3. Step 3: Cross multiply
    7,415.34x = 11,121.39 × 2,485.68
  4. Step 4: Simplify right side
    7,415.34x = 27,644,216.70
  5. Step 5: Solve for x
    x = 27,644,216.70/7,415.34
  6. Step 6: Final answer
    x = 3,727.98

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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.