Home / 7,390.42-11,077.26-2,458.90

Finding the Fourth Proportional to 7,390.42, 11,077.26 and 2,458.90

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Solution

The fourth proportional to 7,390.42, 11,077.26 and 2,458.90 is: 3,685.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.42 : 11,077.26 = 2,458.90 : x
  2. Step 2: Convert to fraction form
    7,390.42/11,077.26 = 2,458.90/x
  3. Step 3: Cross multiply
    7,390.42x = 11,077.26 × 2,458.90
  4. Step 4: Simplify right side
    7,390.42x = 27,237,874.61
  5. Step 5: Solve for x
    x = 27,237,874.61/7,390.42
  6. Step 6: Final answer
    x = 3,685.57

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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.