Home / 7,575.80-11,360.05-3,190.86

Finding the Fourth Proportional to 7,575.80, 11,360.05 and 3,190.86

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Solution

The fourth proportional to 7,575.80, 11,360.05 and 3,190.86 is: 4,784.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,575.80 : 11,360.05 = 3,190.86 : x
  2. Step 2: Convert to fraction form
    7,575.80/11,360.05 = 3,190.86/x
  3. Step 3: Cross multiply
    7,575.80x = 11,360.05 × 3,190.86
  4. Step 4: Simplify right side
    7,575.80x = 36,248,321.17
  5. Step 5: Solve for x
    x = 36,248,321.17/7,575.80
  6. Step 6: Final answer
    x = 4,784.75

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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.