Home / 4,170.30-6,255.45-1,983.30

Finding the Fourth Proportional to 4,170.30, 6,255.45 and 1,983.30

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Solution

The fourth proportional to 4,170.30, 6,255.45 and 1,983.30 is: 2,974.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,170.30 : 6,255.45 = 1,983.30 : x
  2. Step 2: Convert to fraction form
    4,170.30/6,255.45 = 1,983.30/x
  3. Step 3: Cross multiply
    4,170.30x = 6,255.45 × 1,983.30
  4. Step 4: Simplify right side
    4,170.30x = 12,406,433.99
  5. Step 5: Solve for x
    x = 12,406,433.99/4,170.30
  6. Step 6: Final answer
    x = 2,974.95

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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.