Home / 3,879.02-5,348.05-2,818.33

Finding the Fourth Proportional to 3,879.02, 5,348.05 and 2,818.33

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Solution

The fourth proportional to 3,879.02, 5,348.05 and 2,818.33 is: 3,885.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.02 : 5,348.05 = 2,818.33 : x
  2. Step 2: Convert to fraction form
    3,879.02/5,348.05 = 2,818.33/x
  3. Step 3: Cross multiply
    3,879.02x = 5,348.05 × 2,818.33
  4. Step 4: Simplify right side
    3,879.02x = 15,072,549.34
  5. Step 5: Solve for x
    x = 15,072,549.34/3,879.02
  6. Step 6: Final answer
    x = 3,885.66

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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.