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Finding the Fourth Proportional to 2,460.90, 3,689.97 and 998.34

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Solution

The fourth proportional to 2,460.90, 3,689.97 and 998.34 is: 1,496.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,460.90 : 3,689.97 = 998.34 : x
  2. Step 2: Convert to fraction form
    2,460.90/3,689.97 = 998.34/x
  3. Step 3: Cross multiply
    2,460.90x = 3,689.97 × 998.34
  4. Step 4: Simplify right side
    2,460.90x = 3,683,844.65
  5. Step 5: Solve for x
    x = 3,683,844.65/2,460.90
  6. Step 6: Final answer
    x = 1,496.95

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1.5x scale

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.