Home / 6,919.40-10,376.69-4,282.85

Finding the Fourth Proportional to 6,919.40, 10,376.69 and 4,282.85

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Solution

The fourth proportional to 6,919.40, 10,376.69 and 4,282.85 is: 6,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.40 : 10,376.69 = 4,282.85 : x
  2. Step 2: Convert to fraction form
    6,919.40/10,376.69 = 4,282.85/x
  3. Step 3: Cross multiply
    6,919.40x = 10,376.69 × 4,282.85
  4. Step 4: Simplify right side
    6,919.40x = 44,441,811.29
  5. Step 5: Solve for x
    x = 44,441,811.29/6,919.40
  6. Step 6: Final answer
    x = 6,422.78

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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.