Home / 3,392.40-5,087.12-1,200.08

Finding the Fourth Proportional to 3,392.40, 5,087.12 and 1,200.08

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Solution

The fourth proportional to 3,392.40, 5,087.12 and 1,200.08 is: 1,799.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.40 : 5,087.12 = 1,200.08 : x
  2. Step 2: Convert to fraction form
    3,392.40/5,087.12 = 1,200.08/x
  3. Step 3: Cross multiply
    3,392.40x = 5,087.12 × 1,200.08
  4. Step 4: Simplify right side
    3,392.40x = 6,104,950.97
  5. Step 5: Solve for x
    x = 6,104,950.97/3,392.40
  6. Step 6: Final answer
    x = 1,799.60

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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.