Home / 3,970.22-5,479.04-2,398.01

Finding the Fourth Proportional to 3,970.22, 5,479.04 and 2,398.01

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Solution

The fourth proportional to 3,970.22, 5,479.04 and 2,398.01 is: 3,309.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.22 : 5,479.04 = 2,398.01 : x
  2. Step 2: Convert to fraction form
    3,970.22/5,479.04 = 2,398.01/x
  3. Step 3: Cross multiply
    3,970.22x = 5,479.04 × 2,398.01
  4. Step 4: Simplify right side
    3,970.22x = 13,138,771.31
  5. Step 5: Solve for x
    x = 13,138,771.31/3,970.22
  6. Step 6: Final answer
    x = 3,309.33

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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.