Home / 6,139.26-8,472.80-3,486.38

Finding the Fourth Proportional to 6,139.26, 8,472.80 and 3,486.38

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Solution

The fourth proportional to 6,139.26, 8,472.80 and 3,486.38 is: 4,811.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.26 : 8,472.80 = 3,486.38 : x
  2. Step 2: Convert to fraction form
    6,139.26/8,472.80 = 3,486.38/x
  3. Step 3: Cross multiply
    6,139.26x = 8,472.80 × 3,486.38
  4. Step 4: Simplify right side
    6,139.26x = 29,539,366.82
  5. Step 5: Solve for x
    x = 29,539,366.82/6,139.26
  6. Step 6: Final answer
    x = 4,811.55

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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.