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Finding the Fourth Proportional to 5,669.80, 8,504.70 and 3,077.80

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Solution

The fourth proportional to 5,669.80, 8,504.70 and 3,077.80 is: 4,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,669.80 : 8,504.70 = 3,077.80 : x
  2. Step 2: Convert to fraction form
    5,669.80/8,504.70 = 3,077.80/x
  3. Step 3: Cross multiply
    5,669.80x = 8,504.70 × 3,077.80
  4. Step 4: Simplify right side
    5,669.80x = 26,175,765.66
  5. Step 5: Solve for x
    x = 26,175,765.66/5,669.80
  6. Step 6: Final answer
    x = 4,616.70

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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.