Home / 2,690.49-4,033.29-2,398.89

Finding the Fourth Proportional to 2,690.49, 4,033.29 and 2,398.89

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Solution

The fourth proportional to 2,690.49, 4,033.29 and 2,398.89 is: 3,596.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.49 : 4,033.29 = 2,398.89 : x
  2. Step 2: Convert to fraction form
    2,690.49/4,033.29 = 2,398.89/x
  3. Step 3: Cross multiply
    2,690.49x = 4,033.29 × 2,398.89
  4. Step 4: Simplify right side
    2,690.49x = 9,675,419.05
  5. Step 5: Solve for x
    x = 9,675,419.05/2,690.49
  6. Step 6: Final answer
    x = 3,596.15

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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.