Home / 4,814.80-6,644.04-2,825.20

Finding the Fourth Proportional to 4,814.80, 6,644.04 and 2,825.20

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Solution

The fourth proportional to 4,814.80, 6,644.04 and 2,825.20 is: 3,898.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,814.80 : 6,644.04 = 2,825.20 : x
  2. Step 2: Convert to fraction form
    4,814.80/6,644.04 = 2,825.20/x
  3. Step 3: Cross multiply
    4,814.80x = 6,644.04 × 2,825.20
  4. Step 4: Simplify right side
    4,814.80x = 18,770,741.81
  5. Step 5: Solve for x
    x = 18,770,741.81/4,814.80
  6. Step 6: Final answer
    x = 3,898.55

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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.