Home / 4,279.42-6,420.72-2,616.96

Finding the Fourth Proportional to 4,279.42, 6,420.72 and 2,616.96

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Solution

The fourth proportional to 4,279.42, 6,420.72 and 2,616.96 is: 3,926.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.42 : 6,420.72 = 2,616.96 : x
  2. Step 2: Convert to fraction form
    4,279.42/6,420.72 = 2,616.96/x
  3. Step 3: Cross multiply
    4,279.42x = 6,420.72 × 2,616.96
  4. Step 4: Simplify right side
    4,279.42x = 16,802,767.41
  5. Step 5: Solve for x
    x = 16,802,767.41/4,279.42
  6. Step 6: Final answer
    x = 3,926.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.