Home / 4,122.07-5,688.93-3,992.87

Finding the Fourth Proportional to 4,122.07, 5,688.93 and 3,992.87

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Solution

The fourth proportional to 4,122.07, 5,688.93 and 3,992.87 is: 5,510.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.07 : 5,688.93 = 3,992.87 : x
  2. Step 2: Convert to fraction form
    4,122.07/5,688.93 = 3,992.87/x
  3. Step 3: Cross multiply
    4,122.07x = 5,688.93 × 3,992.87
  4. Step 4: Simplify right side
    4,122.07x = 22,715,157.93
  5. Step 5: Solve for x
    x = 22,715,157.93/4,122.07
  6. Step 6: Final answer
    x = 5,510.62

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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.