Home / 3,385.67-4,670.86-2,126.60

Finding the Fourth Proportional to 3,385.67, 4,670.86 and 2,126.60

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Solution

The fourth proportional to 3,385.67, 4,670.86 and 2,126.60 is: 2,933.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.67 : 4,670.86 = 2,126.60 : x
  2. Step 2: Convert to fraction form
    3,385.67/4,670.86 = 2,126.60/x
  3. Step 3: Cross multiply
    3,385.67x = 4,670.86 × 2,126.60
  4. Step 4: Simplify right side
    3,385.67x = 9,933,050.88
  5. Step 5: Solve for x
    x = 9,933,050.88/3,385.67
  6. Step 6: Final answer
    x = 2,933.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.