Home / 2,459.49-3,689.58-899.21

Finding the Fourth Proportional to 2,459.49, 3,689.58 and 899.21

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Solution

The fourth proportional to 2,459.49, 3,689.58 and 899.21 is: 1,348.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,459.49 : 3,689.58 = 899.21 : x
  2. Step 2: Convert to fraction form
    2,459.49/3,689.58 = 899.21/x
  3. Step 3: Cross multiply
    2,459.49x = 3,689.58 × 899.21
  4. Step 4: Simplify right side
    2,459.49x = 3,317,688.78
  5. Step 5: Solve for x
    x = 3,317,688.78/2,459.49
  6. Step 6: Final answer
    x = 1,348.93

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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.