Home / 4,207.75-6,311.52-1,087.76

Finding the Fourth Proportional to 4,207.75, 6,311.52 and 1,087.76

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Solution

The fourth proportional to 4,207.75, 6,311.52 and 1,087.76 is: 1,631.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.75 : 6,311.52 = 1,087.76 : x
  2. Step 2: Convert to fraction form
    4,207.75/6,311.52 = 1,087.76/x
  3. Step 3: Cross multiply
    4,207.75x = 6,311.52 × 1,087.76
  4. Step 4: Simplify right side
    4,207.75x = 6,865,434.77
  5. Step 5: Solve for x
    x = 6,865,434.77/4,207.75
  6. Step 6: Final answer
    x = 1,631.62

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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.