Home / 1,639.82-2,454.06-1,343.90

Finding the Fourth Proportional to 1,639.82, 2,454.06 and 1,343.90

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Solution

The fourth proportional to 1,639.82, 2,454.06 and 1,343.90 is: 2,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.82 : 2,454.06 = 1,343.90 : x
  2. Step 2: Convert to fraction form
    1,639.82/2,454.06 = 1,343.90/x
  3. Step 3: Cross multiply
    1,639.82x = 2,454.06 × 1,343.90
  4. Step 4: Simplify right side
    1,639.82x = 3,298,011.23
  5. Step 5: Solve for x
    x = 3,298,011.23/1,639.82
  6. Step 6: Final answer
    x = 2,011.20

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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.