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Finding the Fourth Proportional to 2,458.03, 3,687.05 and 997.21

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Solution

The fourth proportional to 2,458.03, 3,687.05 and 997.21 is: 1,495.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,458.03 : 3,687.05 = 997.21 : x
  2. Step 2: Convert to fraction form
    2,458.03/3,687.05 = 997.21/x
  3. Step 3: Cross multiply
    2,458.03x = 3,687.05 × 997.21
  4. Step 4: Simplify right side
    2,458.03x = 3,676,763.13
  5. Step 5: Solve for x
    x = 3,676,763.13/2,458.03
  6. Step 6: Final answer
    x = 1,495.82

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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.