Home / 6,721.30-10,081.92-1,790.94

Finding the Fourth Proportional to 6,721.30, 10,081.92 and 1,790.94

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Solution

The fourth proportional to 6,721.30, 10,081.92 and 1,790.94 is: 2,686.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.30 : 10,081.92 = 1,790.94 : x
  2. Step 2: Convert to fraction form
    6,721.30/10,081.92 = 1,790.94/x
  3. Step 3: Cross multiply
    6,721.30x = 10,081.92 × 1,790.94
  4. Step 4: Simplify right side
    6,721.30x = 18,056,113.80
  5. Step 5: Solve for x
    x = 18,056,113.80/6,721.30
  6. Step 6: Final answer
    x = 2,686.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.