Home / 3,451.20-4,762.65-1,879.30

Finding the Fourth Proportional to 3,451.20, 4,762.65 and 1,879.30

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Solution

The fourth proportional to 3,451.20, 4,762.65 and 1,879.30 is: 2,593.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.20 : 4,762.65 = 1,879.30 : x
  2. Step 2: Convert to fraction form
    3,451.20/4,762.65 = 1,879.30/x
  3. Step 3: Cross multiply
    3,451.20x = 4,762.65 × 1,879.30
  4. Step 4: Simplify right side
    3,451.20x = 8,950,448.15
  5. Step 5: Solve for x
    x = 8,950,448.15/3,451.20
  6. Step 6: Final answer
    x = 2,593.43

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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.