Home / 6,139.23-8,472.20-3,486.66

Finding the Fourth Proportional to 6,139.23, 8,472.20 and 3,486.66

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Solution

The fourth proportional to 6,139.23, 8,472.20 and 3,486.66 is: 4,811.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.23 : 8,472.20 = 3,486.66 : x
  2. Step 2: Convert to fraction form
    6,139.23/8,472.20 = 3,486.66/x
  3. Step 3: Cross multiply
    6,139.23x = 8,472.20 × 3,486.66
  4. Step 4: Simplify right side
    6,139.23x = 29,539,631.65
  5. Step 5: Solve for x
    x = 29,539,631.65/6,139.23
  6. Step 6: Final answer
    x = 4,811.62

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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.