Home / 7,122.89-10,685.34-2,192.93

Finding the Fourth Proportional to 7,122.89, 10,685.34 and 2,192.93

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Solution

The fourth proportional to 7,122.89, 10,685.34 and 2,192.93 is: 3,289.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.89 : 10,685.34 = 2,192.93 : x
  2. Step 2: Convert to fraction form
    7,122.89/10,685.34 = 2,192.93/x
  3. Step 3: Cross multiply
    7,122.89x = 10,685.34 × 2,192.93
  4. Step 4: Simplify right side
    7,122.89x = 23,432,202.65
  5. Step 5: Solve for x
    x = 23,432,202.65/7,122.89
  6. Step 6: Final answer
    x = 3,289.70

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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.