Home / 3,333.72-5,002.80-1,385.92

Finding the Fourth Proportional to 3,333.72, 5,002.80 and 1,385.92

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Solution

The fourth proportional to 3,333.72, 5,002.80 and 1,385.92 is: 2,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.72 : 5,002.80 = 1,385.92 : x
  2. Step 2: Convert to fraction form
    3,333.72/5,002.80 = 1,385.92/x
  3. Step 3: Cross multiply
    3,333.72x = 5,002.80 × 1,385.92
  4. Step 4: Simplify right side
    3,333.72x = 6,933,480.58
  5. Step 5: Solve for x
    x = 6,933,480.58/3,333.72
  6. Step 6: Final answer
    x = 2,079.80

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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.