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Finding the Fourth Proportional to 4,992.15, 6,889.51 and 2,868.02

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Solution

The fourth proportional to 4,992.15, 6,889.51 and 2,868.02 is: 3,958.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.15 : 6,889.51 = 2,868.02 : x
  2. Step 2: Convert to fraction form
    4,992.15/6,889.51 = 2,868.02/x
  3. Step 3: Cross multiply
    4,992.15x = 6,889.51 × 2,868.02
  4. Step 4: Simplify right side
    4,992.15x = 19,759,262.52
  5. Step 5: Solve for x
    x = 19,759,262.52/4,992.15
  6. Step 6: Final answer
    x = 3,958.07

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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.