Home / 1,645.66-2,271.04-899.62

Finding the Fourth Proportional to 1,645.66, 2,271.04 and 899.62

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Solution

The fourth proportional to 1,645.66, 2,271.04 and 899.62 is: 1,241.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.66 : 2,271.04 = 899.62 : x
  2. Step 2: Convert to fraction form
    1,645.66/2,271.04 = 899.62/x
  3. Step 3: Cross multiply
    1,645.66x = 2,271.04 × 899.62
  4. Step 4: Simplify right side
    1,645.66x = 2,043,073.00
  5. Step 5: Solve for x
    x = 2,043,073.00/1,645.66
  6. Step 6: Final answer
    x = 1,241.49

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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.