Home / 3,207.35-4,811.30-1,127.17

Finding the Fourth Proportional to 3,207.35, 4,811.30 and 1,127.17

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Solution

The fourth proportional to 3,207.35, 4,811.30 and 1,127.17 is: 1,690.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.35 : 4,811.30 = 1,127.17 : x
  2. Step 2: Convert to fraction form
    3,207.35/4,811.30 = 1,127.17/x
  3. Step 3: Cross multiply
    3,207.35x = 4,811.30 × 1,127.17
  4. Step 4: Simplify right side
    3,207.35x = 5,423,147.39
  5. Step 5: Solve for x
    x = 5,423,147.39/3,207.35
  6. Step 6: Final answer
    x = 1,690.85

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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.