Home / 2,835.21-4,253.58-986.43

Finding the Fourth Proportional to 2,835.21, 4,253.58 and 986.43

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Solution

The fourth proportional to 2,835.21, 4,253.58 and 986.43 is: 1,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.21 : 4,253.58 = 986.43 : x
  2. Step 2: Convert to fraction form
    2,835.21/4,253.58 = 986.43/x
  3. Step 3: Cross multiply
    2,835.21x = 4,253.58 × 986.43
  4. Step 4: Simplify right side
    2,835.21x = 4,195,837.65
  5. Step 5: Solve for x
    x = 4,195,837.65/2,835.21
  6. Step 6: Final answer
    x = 1,479.90

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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.