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Finding the Fourth Proportional to 1,599.71, 2,398.01 and 983.60

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Solution

The fourth proportional to 1,599.71, 2,398.01 and 983.60 is: 1,474.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,599.71 : 2,398.01 = 983.60 : x
  2. Step 2: Convert to fraction form
    1,599.71/2,398.01 = 983.60/x
  3. Step 3: Cross multiply
    1,599.71x = 2,398.01 × 983.60
  4. Step 4: Simplify right side
    1,599.71x = 2,358,673.10
  5. Step 5: Solve for x
    x = 2,358,673.10/1,599.71
  6. Step 6: Final answer
    x = 1,474.44

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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.