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Finding the Fourth Proportional to 4,046.80, 6,070.08 and 3,128.08

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Solution

The fourth proportional to 4,046.80, 6,070.08 and 3,128.08 is: 4,692.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,046.80 : 6,070.08 = 3,128.08 : x
  2. Step 2: Convert to fraction form
    4,046.80/6,070.08 = 3,128.08/x
  3. Step 3: Cross multiply
    4,046.80x = 6,070.08 × 3,128.08
  4. Step 4: Simplify right side
    4,046.80x = 18,987,695.85
  5. Step 5: Solve for x
    x = 18,987,695.85/4,046.80
  6. Step 6: Final answer
    x = 4,692.03

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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.