Home / 4,989.80-6,885.12-2,893.52

Finding the Fourth Proportional to 4,989.80, 6,885.12 and 2,893.52

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Solution

The fourth proportional to 4,989.80, 6,885.12 and 2,893.52 is: 3,992.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.80 : 6,885.12 = 2,893.52 : x
  2. Step 2: Convert to fraction form
    4,989.80/6,885.12 = 2,893.52/x
  3. Step 3: Cross multiply
    4,989.80x = 6,885.12 × 2,893.52
  4. Step 4: Simplify right side
    4,989.80x = 19,922,232.42
  5. Step 5: Solve for x
    x = 19,922,232.42/4,989.80
  6. Step 6: Final answer
    x = 3,992.59

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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.