Home / 1,636.28-2,455.60-1,020.88

Finding the Fourth Proportional to 1,636.28, 2,455.60 and 1,020.88

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Solution

The fourth proportional to 1,636.28, 2,455.60 and 1,020.88 is: 1,532.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.28 : 2,455.60 = 1,020.88 : x
  2. Step 2: Convert to fraction form
    1,636.28/2,455.60 = 1,020.88/x
  3. Step 3: Cross multiply
    1,636.28x = 2,455.60 × 1,020.88
  4. Step 4: Simplify right side
    1,636.28x = 2,506,872.93
  5. Step 5: Solve for x
    x = 2,506,872.93/1,636.28
  6. Step 6: Final answer
    x = 1,532.06

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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.