Home / 6,720.12-9,274.50-3,849.12

Finding the Fourth Proportional to 6,720.12, 9,274.50 and 3,849.12

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Solution

The fourth proportional to 6,720.12, 9,274.50 and 3,849.12 is: 5,312.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.12 : 9,274.50 = 3,849.12 : x
  2. Step 2: Convert to fraction form
    6,720.12/9,274.50 = 3,849.12/x
  3. Step 3: Cross multiply
    6,720.12x = 9,274.50 × 3,849.12
  4. Step 4: Simplify right side
    6,720.12x = 35,698,663.44
  5. Step 5: Solve for x
    x = 35,698,663.44/6,720.12
  6. Step 6: Final answer
    x = 5,312.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.