Home / 4,813.20-6,639.84-2,822.46

Finding the Fourth Proportional to 4,813.20, 6,639.84 and 2,822.46

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Solution

The fourth proportional to 4,813.20, 6,639.84 and 2,822.46 is: 3,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,813.20 : 6,639.84 = 2,822.46 : x
  2. Step 2: Convert to fraction form
    4,813.20/6,639.84 = 2,822.46/x
  3. Step 3: Cross multiply
    4,813.20x = 6,639.84 × 2,822.46
  4. Step 4: Simplify right side
    4,813.20x = 18,740,682.81
  5. Step 5: Solve for x
    x = 18,740,682.81/4,813.20
  6. Step 6: Final answer
    x = 3,893.60

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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.