Home / 3,392.30-5,087.51-1,200.74

Finding the Fourth Proportional to 3,392.30, 5,087.51 and 1,200.74

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Solution

The fourth proportional to 3,392.30, 5,087.51 and 1,200.74 is: 1,800.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.30 : 5,087.51 = 1,200.74 : x
  2. Step 2: Convert to fraction form
    3,392.30/5,087.51 = 1,200.74/x
  3. Step 3: Cross multiply
    3,392.30x = 5,087.51 × 1,200.74
  4. Step 4: Simplify right side
    3,392.30x = 6,108,776.76
  5. Step 5: Solve for x
    x = 6,108,776.76/3,392.30
  6. Step 6: Final answer
    x = 1,800.78

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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.