Home / 3,980.07-5,503.41-3,358.26

Finding the Fourth Proportional to 3,980.07, 5,503.41 and 3,358.26

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Solution

The fourth proportional to 3,980.07, 5,503.41 and 3,358.26 is: 4,643.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.07 : 5,503.41 = 3,358.26 : x
  2. Step 2: Convert to fraction form
    3,980.07/5,503.41 = 3,358.26/x
  3. Step 3: Cross multiply
    3,980.07x = 5,503.41 × 3,358.26
  4. Step 4: Simplify right side
    3,980.07x = 18,481,881.67
  5. Step 5: Solve for x
    x = 18,481,881.67/3,980.07
  6. Step 6: Final answer
    x = 4,643.61

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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.