Home / 3,851.12-5,776.04-1,385.44

Finding the Fourth Proportional to 3,851.12, 5,776.04 and 1,385.44

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Solution

The fourth proportional to 3,851.12, 5,776.04 and 1,385.44 is: 2,077.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.12 : 5,776.04 = 1,385.44 : x
  2. Step 2: Convert to fraction form
    3,851.12/5,776.04 = 1,385.44/x
  3. Step 3: Cross multiply
    3,851.12x = 5,776.04 × 1,385.44
  4. Step 4: Simplify right side
    3,851.12x = 8,002,356.86
  5. Step 5: Solve for x
    x = 8,002,356.86/3,851.12
  6. Step 6: Final answer
    x = 2,077.93

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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.