Home / 4,072.46-5,620.40-2,479.22

Finding the Fourth Proportional to 4,072.46, 5,620.40 and 2,479.22

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Solution

The fourth proportional to 4,072.46, 5,620.40 and 2,479.22 is: 3,421.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.46 : 5,620.40 = 2,479.22 : x
  2. Step 2: Convert to fraction form
    4,072.46/5,620.40 = 2,479.22/x
  3. Step 3: Cross multiply
    4,072.46x = 5,620.40 × 2,479.22
  4. Step 4: Simplify right side
    4,072.46x = 13,934,208.09
  5. Step 5: Solve for x
    x = 13,934,208.09/4,072.46
  6. Step 6: Final answer
    x = 3,421.57

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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.