Home / 3,992.08-5,510.86-2,858.64

Finding the Fourth Proportional to 3,992.08, 5,510.86 and 2,858.64

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Solution

The fourth proportional to 3,992.08, 5,510.86 and 2,858.64 is: 3,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.08 : 5,510.86 = 2,858.64 : x
  2. Step 2: Convert to fraction form
    3,992.08/5,510.86 = 2,858.64/x
  3. Step 3: Cross multiply
    3,992.08x = 5,510.86 × 2,858.64
  4. Step 4: Simplify right side
    3,992.08x = 15,753,564.83
  5. Step 5: Solve for x
    x = 15,753,564.83/3,992.08
  6. Step 6: Final answer
    x = 3,946.20

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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.