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Finding the Fourth Proportional to 1,606.58, 2,217.87 and 1,246.87

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Solution

The fourth proportional to 1,606.58, 2,217.87 and 1,246.87 is: 1,721.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,606.58 : 2,217.87 = 1,246.87 : x
  2. Step 2: Convert to fraction form
    1,606.58/2,217.87 = 1,246.87/x
  3. Step 3: Cross multiply
    1,606.58x = 2,217.87 × 1,246.87
  4. Step 4: Simplify right side
    1,606.58x = 2,765,395.57
  5. Step 5: Solve for x
    x = 2,765,395.57/1,606.58
  6. Step 6: Final answer
    x = 1,721.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.