Home / 3,348.72-4,621.97-2,788.30

Finding the Fourth Proportional to 3,348.72, 4,621.97 and 2,788.30

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Solution

The fourth proportional to 3,348.72, 4,621.97 and 2,788.30 is: 3,848.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,348.72 : 4,621.97 = 2,788.30 : x
  2. Step 2: Convert to fraction form
    3,348.72/4,621.97 = 2,788.30/x
  3. Step 3: Cross multiply
    3,348.72x = 4,621.97 × 2,788.30
  4. Step 4: Simplify right side
    3,348.72x = 12,887,438.95
  5. Step 5: Solve for x
    x = 12,887,438.95/3,348.72
  6. Step 6: Final answer
    x = 3,848.47

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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.