Home / 3,254.24-4,879.13-1,278.63

Finding the Fourth Proportional to 3,254.24, 4,879.13 and 1,278.63

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Solution

The fourth proportional to 3,254.24, 4,879.13 and 1,278.63 is: 1,917.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,254.24 : 4,879.13 = 1,278.63 : x
  2. Step 2: Convert to fraction form
    3,254.24/4,879.13 = 1,278.63/x
  3. Step 3: Cross multiply
    3,254.24x = 4,879.13 × 1,278.63
  4. Step 4: Simplify right side
    3,254.24x = 6,238,595.60
  5. Step 5: Solve for x
    x = 6,238,595.60/3,254.24
  6. Step 6: Final answer
    x = 1,917.07

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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.