Home / 4,253.80-6,376.20-1,620.12

Finding the Fourth Proportional to 4,253.80, 6,376.20 and 1,620.12

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Solution

The fourth proportional to 4,253.80, 6,376.20 and 1,620.12 is: 2,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.80 : 6,376.20 = 1,620.12 : x
  2. Step 2: Convert to fraction form
    4,253.80/6,376.20 = 1,620.12/x
  3. Step 3: Cross multiply
    4,253.80x = 6,376.20 × 1,620.12
  4. Step 4: Simplify right side
    4,253.80x = 10,330,209.14
  5. Step 5: Solve for x
    x = 10,330,209.14/4,253.80
  6. Step 6: Final answer
    x = 2,428.47

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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.