Home / 4,153.40-6,231.88-1,380.44

Finding the Fourth Proportional to 4,153.40, 6,231.88 and 1,380.44

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Solution

The fourth proportional to 4,153.40, 6,231.88 and 1,380.44 is: 2,071.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,153.40 : 6,231.88 = 1,380.44 : x
  2. Step 2: Convert to fraction form
    4,153.40/6,231.88 = 1,380.44/x
  3. Step 3: Cross multiply
    4,153.40x = 6,231.88 × 1,380.44
  4. Step 4: Simplify right side
    4,153.40x = 8,602,736.43
  5. Step 5: Solve for x
    x = 8,602,736.43/4,153.40
  6. Step 6: Final answer
    x = 2,071.25

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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.