Home / 4,135.20-6,202.76-1,213.40

Finding the Fourth Proportional to 4,135.20, 6,202.76 and 1,213.40

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Solution

The fourth proportional to 4,135.20, 6,202.76 and 1,213.40 is: 1,820.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,135.20 : 6,202.76 = 1,213.40 : x
  2. Step 2: Convert to fraction form
    4,135.20/6,202.76 = 1,213.40/x
  3. Step 3: Cross multiply
    4,135.20x = 6,202.76 × 1,213.40
  4. Step 4: Simplify right side
    4,135.20x = 7,526,391.90
  5. Step 5: Solve for x
    x = 7,526,391.90/4,135.20
  6. Step 6: Final answer
    x = 1,820.08

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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.