Home / 4,921.84-6,821.46-4,829.68

Finding the Fourth Proportional to 4,921.84, 6,821.46 and 4,829.68

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Solution

The fourth proportional to 4,921.84, 6,821.46 and 4,829.68 is: 6,693.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.84 : 6,821.46 = 4,829.68 : x
  2. Step 2: Convert to fraction form
    4,921.84/6,821.46 = 4,829.68/x
  3. Step 3: Cross multiply
    4,921.84x = 6,821.46 × 4,829.68
  4. Step 4: Simplify right side
    4,921.84x = 32,945,468.93
  5. Step 5: Solve for x
    x = 32,945,468.93/4,921.84
  6. Step 6: Final answer
    x = 6,693.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.