Home / 3,385.08-5,078.46-1,630.20

Finding the Fourth Proportional to 3,385.08, 5,078.46 and 1,630.20

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Solution

The fourth proportional to 3,385.08, 5,078.46 and 1,630.20 is: 2,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.08 : 5,078.46 = 1,630.20 : x
  2. Step 2: Convert to fraction form
    3,385.08/5,078.46 = 1,630.20/x
  3. Step 3: Cross multiply
    3,385.08x = 5,078.46 × 1,630.20
  4. Step 4: Simplify right side
    3,385.08x = 8,278,905.49
  5. Step 5: Solve for x
    x = 8,278,905.49/3,385.08
  6. Step 6: Final answer
    x = 2,445.70

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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.