Home / 7,420.86-11,132.65-3,725.64

Finding the Fourth Proportional to 7,420.86, 11,132.65 and 3,725.64

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Solution

The fourth proportional to 7,420.86, 11,132.65 and 3,725.64 is: 5,589.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.86 : 11,132.65 = 3,725.64 : x
  2. Step 2: Convert to fraction form
    7,420.86/11,132.65 = 3,725.64/x
  3. Step 3: Cross multiply
    7,420.86x = 11,132.65 × 3,725.64
  4. Step 4: Simplify right side
    7,420.86x = 41,476,246.15
  5. Step 5: Solve for x
    x = 41,476,246.15/7,420.86
  6. Step 6: Final answer
    x = 5,589.14

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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.