Home / 4,639.20-6,923.60-4,261.28

Finding the Fourth Proportional to 4,639.20, 6,923.60 and 4,261.28

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Solution

The fourth proportional to 4,639.20, 6,923.60 and 4,261.28 is: 6,359.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639.20 : 6,923.60 = 4,261.28 : x
  2. Step 2: Convert to fraction form
    4,639.20/6,923.60 = 4,261.28/x
  3. Step 3: Cross multiply
    4,639.20x = 6,923.60 × 4,261.28
  4. Step 4: Simplify right side
    4,639.20x = 29,503,398.21
  5. Step 5: Solve for x
    x = 29,503,398.21/4,639.20
  6. Step 6: Final answer
    x = 6,359.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.