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Finding the Fourth Proportional to 2,460.60, 3,689.28 and 998.28

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Solution

The fourth proportional to 2,460.60, 3,689.28 and 998.28 is: 1,496.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,460.60 : 3,689.28 = 998.28 : x
  2. Step 2: Convert to fraction form
    2,460.60/3,689.28 = 998.28/x
  3. Step 3: Cross multiply
    2,460.60x = 3,689.28 × 998.28
  4. Step 4: Simplify right side
    2,460.60x = 3,682,934.44
  5. Step 5: Solve for x
    x = 3,682,934.44/2,460.60
  6. Step 6: Final answer
    x = 1,496.76

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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.