Home / 3,060.07-4,221.31-2,116.83

Finding the Fourth Proportional to 3,060.07, 4,221.31 and 2,116.83

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Solution

The fourth proportional to 3,060.07, 4,221.31 and 2,116.83 is: 2,920.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.07 : 4,221.31 = 2,116.83 : x
  2. Step 2: Convert to fraction form
    3,060.07/4,221.31 = 2,116.83/x
  3. Step 3: Cross multiply
    3,060.07x = 4,221.31 × 2,116.83
  4. Step 4: Simplify right side
    3,060.07x = 8,935,795.65
  5. Step 5: Solve for x
    x = 8,935,795.65/3,060.07
  6. Step 6: Final answer
    x = 2,920.13

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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.