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Finding the Fourth Proportional to 2,460.36, 3,690.98 and 817.01

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Solution

The fourth proportional to 2,460.36, 3,690.98 and 817.01 is: 1,225.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,460.36 : 3,690.98 = 817.01 : x
  2. Step 2: Convert to fraction form
    2,460.36/3,690.98 = 817.01/x
  3. Step 3: Cross multiply
    2,460.36x = 3,690.98 × 817.01
  4. Step 4: Simplify right side
    2,460.36x = 3,015,567.57
  5. Step 5: Solve for x
    x = 3,015,567.57/2,460.36
  6. Step 6: Final answer
    x = 1,225.66

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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.