Home / 1,645.88-2,271.35-899.87

Finding the Fourth Proportional to 1,645.88, 2,271.35 and 899.87

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Solution

The fourth proportional to 1,645.88, 2,271.35 and 899.87 is: 1,241.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.88 : 2,271.35 = 899.87 : x
  2. Step 2: Convert to fraction form
    1,645.88/2,271.35 = 899.87/x
  3. Step 3: Cross multiply
    1,645.88x = 2,271.35 × 899.87
  4. Step 4: Simplify right side
    1,645.88x = 2,043,903.87
  5. Step 5: Solve for x
    x = 2,043,903.87/1,645.88
  6. Step 6: Final answer
    x = 1,241.83

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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.