Home / 3,291.80-4,937.70-3,000.20

Finding the Fourth Proportional to 3,291.80, 4,937.70 and 3,000.20

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Solution

The fourth proportional to 3,291.80, 4,937.70 and 3,000.20 is: 4,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.80 : 4,937.70 = 3,000.20 : x
  2. Step 2: Convert to fraction form
    3,291.80/4,937.70 = 3,000.20/x
  3. Step 3: Cross multiply
    3,291.80x = 4,937.70 × 3,000.20
  4. Step 4: Simplify right side
    3,291.80x = 14,814,087.54
  5. Step 5: Solve for x
    x = 14,814,087.54/3,291.80
  6. Step 6: Final answer
    x = 4,500.30

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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.