Home / 6,191.36-8,542.70-3,672.20

Finding the Fourth Proportional to 6,191.36, 8,542.70 and 3,672.20

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Solution

The fourth proportional to 6,191.36, 8,542.70 and 3,672.20 is: 5,066.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,191.36 : 8,542.70 = 3,672.20 : x
  2. Step 2: Convert to fraction form
    6,191.36/8,542.70 = 3,672.20/x
  3. Step 3: Cross multiply
    6,191.36x = 8,542.70 × 3,672.20
  4. Step 4: Simplify right side
    6,191.36x = 31,370,502.94
  5. Step 5: Solve for x
    x = 31,370,502.94/6,191.36
  6. Step 6: Final answer
    x = 5,066.82

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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.