Home / 1,639.10-2,460.92-1,020.98

Finding the Fourth Proportional to 1,639.10, 2,460.92 and 1,020.98

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Solution

The fourth proportional to 1,639.10, 2,460.92 and 1,020.98 is: 1,532.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.10 : 2,460.92 = 1,020.98 : x
  2. Step 2: Convert to fraction form
    1,639.10/2,460.92 = 1,020.98/x
  3. Step 3: Cross multiply
    1,639.10x = 2,460.92 × 1,020.98
  4. Step 4: Simplify right side
    1,639.10x = 2,512,532.69
  5. Step 5: Solve for x
    x = 2,512,532.69/1,639.10
  6. Step 6: Final answer
    x = 1,532.88

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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.