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Finding the Fourth Proportional to 3,716.80, 5,582.40 and 2,258.80

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Solution

The fourth proportional to 3,716.80, 5,582.40 and 2,258.80 is: 3,392.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.80 : 5,582.40 = 2,258.80 : x
  2. Step 2: Convert to fraction form
    3,716.80/5,582.40 = 2,258.80/x
  3. Step 3: Cross multiply
    3,716.80x = 5,582.40 × 2,258.80
  4. Step 4: Simplify right side
    3,716.80x = 12,609,525.12
  5. Step 5: Solve for x
    x = 12,609,525.12/3,716.80
  6. Step 6: Final answer
    x = 3,392.58

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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.