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Finding the Fourth Proportional to 1,639.41, 2,459.36 and 599.17

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Solution

The fourth proportional to 1,639.41, 2,459.36 and 599.17 is: 898.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.41 : 2,459.36 = 599.17 : x
  2. Step 2: Convert to fraction form
    1,639.41/2,459.36 = 599.17/x
  3. Step 3: Cross multiply
    1,639.41x = 2,459.36 × 599.17
  4. Step 4: Simplify right side
    1,639.41x = 1,473,577.06
  5. Step 5: Solve for x
    x = 1,473,577.06/1,639.41
  6. Step 6: Final answer
    x = 898.84

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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.