Home / 3,191.09-4,787.25-999.84

Finding the Fourth Proportional to 3,191.09, 4,787.25 and 999.84

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Solution

The fourth proportional to 3,191.09, 4,787.25 and 999.84 is: 1,499.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.09 : 4,787.25 = 999.84 : x
  2. Step 2: Convert to fraction form
    3,191.09/4,787.25 = 999.84/x
  3. Step 3: Cross multiply
    3,191.09x = 4,787.25 × 999.84
  4. Step 4: Simplify right side
    3,191.09x = 4,786,479.04
  5. Step 5: Solve for x
    x = 4,786,479.04/3,191.09
  6. Step 6: Final answer
    x = 1,499.95

Related Problems

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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.