Home / 7,122.83-10,685.67-2,192.29

Finding the Fourth Proportional to 7,122.83, 10,685.67 and 2,192.29

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Solution

The fourth proportional to 7,122.83, 10,685.67 and 2,192.29 is: 3,288.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.83 : 10,685.67 = 2,192.29 : x
  2. Step 2: Convert to fraction form
    7,122.83/10,685.67 = 2,192.29/x
  3. Step 3: Cross multiply
    7,122.83x = 10,685.67 × 2,192.29
  4. Step 4: Simplify right side
    7,122.83x = 23,426,060.77
  5. Step 5: Solve for x
    x = 23,426,060.77/7,122.83
  6. Step 6: Final answer
    x = 3,288.87

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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.